Joel was super helpful and very prompt. He provided full service, guaranteed his work, and went…read moreabove and beyond; not only fixing our issue but also giving our car a full inspection. Highly recommend!

Great experience, honest and true all the way through. Highly recommend & Will definitely be back!read more

Every few years you find a business that goes well beyond what is expected. Had an issue beyond…read moretheir control and they did an amazing job taking care of it. The absolute highest standard of integrity. You are in great hands dealing with these wonderful folks.

This shop is absolutely the place to go for repairs!! I was in a bind because of my drive shaft,…read moreand they took care of me immediately and kept me informed with my repairs. They definitely live up to their name, A-Affordable transmission :). The dealership was going to be super expensive and was referred to them by an independent mechanic. Best choice I could have made. Kenzie is an absolute charm and super polite (love her). The Mechanics are very knowledgeable, super friendly and know their stuff. The whole crew is AMAZING and couldn't be happier with the whole experience.

Called for transmission fluid service and they got me in the same day. Was quoted a price ($289…read moreplus tax) that was slightly lower than another I'd gotten and a 2 hour timeframe so I waited in their lobby which has free wifi. Was charged as quoted and car was ready in a shade over two hours. Good experience

Our car broke down on a weekend trip and we find this repair, they took us in without an…read moreappointment. They found the problem fast and fixed the brake line the same day. Price was fair, and they was friendly too. We were lucky to find them.

Took my Lexus GX470 here last summer for my timing belt and water pump. I've had no problems since…read morethen other than having them replace a serpentine belt that was making noise after replacing the timing belt. Charged me for only the part! I recently took it back this week because I had a very odd vibration throughout the entire vehicle that I was feeling only when it was stopped. I was stumped and couldn't figure out the problem. They diagnosed it had a broken fan and replaced the fan shroud and the fan. I would highly recommend taking your vehicle here!

I have used this business for many different repairs over the years. Full transmission repair on a…read more4500 GMC box truck, as well as different types of services and repairs on my 2014 Jeep Grand Cherokee. I would highly recommend them. Quality of the work has been excellent and the price has always been fair. Just recently had the transmission serviced, oil changed, thermostat replaced on the Jeep. Cliffs Auto has my Jeep running like a top! Thanks, Daniel Peacemaker

These dudes do it quick and do it right.they do my whole families transmissions and all our custom…read moreexaust work.Tell them BigMike sent you.

My Name is Jeff Williams, I recently found myself in a bind. I went into Budget expecting to pay…read moreout the behind. this place was clean the part cost more then the work and car was ready in less then time then expected. extremely impressed would recommend these guys to anyone.

I have been using Harmony Automotive for years and James has been…read more so helpful and kind. He cares about his clientele and has always taken care of me...which makes me feel special versus some recent experiences I've had-

I've been a customer since Harmony purchased from Advanced Auto Pros. It's been getting worse and…read moreworse over time. Most recently, these guys had my car for over 2 weeks for a noise I was hearing. First they misdiagnosed it. Then they told me it was the transmission and had the car torn apart. Then they had no mechanic in the shop at all for a few days. Then they hired someone who said the noise was the rear struts, fixed those, but left the battery dead. During all of this time, they never called me one time with an update. Not once. They didn't tell me the misdiagnosis until way after. They didn't ask me if they could tear the car apart. They didn't tell me they had no mechanic to put it back together. I had to call myself and pester them to find out what was going on. Worse yet, the noise came back less than 2 weeks later. Take your car somewhere else.

This shop was recommended by John at Performance Plus in Golden and he is a pro. I have a 140k mile…read more'03 C5 Corvette, I think I had a transmission fluid change done at under 100K miles, but it was definitely due for another. Brian said they don't flush the fluid which as I've been told can loosen up caked gunk in the tranny and cause issues, he just heats it up, drains it thoroughly overnight, then pulls the pan to change the filter etc, then close it up, run it and, then drain a second time. Sounded good to me! The tab was $450.00 which I'll admit surprised me but to know it's done right and it's good for many miles to come - ok by me. And you gotta love a guy that owns an SL Mercedes 12 cylinder monster. Great shop, great guy, highly recommend.

Customer service was amazing. Derek spoke with me for 30 minutes about my car before me even…read morehanding it over to them. Then when they got it, the talked with me through the entire process. Very pleased on how my car feels, runs, and the communication! I will continue to send my car here for maintenance.

MY F-350 work truck broke down on the highway. I figured it was the transmission so I had it towed…read morefrom my house after unloading all my tools & parts, to Detroit Transmission. Of course I dropped by to check out the place prior to making my decision. I wanted to make sure Tim wasn't packing a loaded gun as one post mentioned.I was impressed with the place as I took a tour. Tim seemed like a strait shooter- I was convinced they had the right stuff to fix my truck. It turned out to be a broken axle, instead of the tranny. They kept me updated on the progress... I needed to come by and grab a tool from my truck while it was up on the lift and they were very accommodating. Harold, who was doing the work was very pleasant and helpful, showing me the broken parts etc. The various front office staff were pleasant. My truck was finished in a timely manner. The bill seemed reasonable ( expensive repair? Of course it was expensive! its a transmission/powertrain shop, but I know it was done right). I'd give them my business again... I couldn't have asked for better service. Ron Lehman

Dropped my Mercedes off on April 1, 2026. They looked us in the eye and said 2-3 weeks. I finally…read moregot it back in July. They charged me for a "100,000-mile warranty." After the money cleared they said they'd mail it. Three weeks of complete silence later I called. Some bitter woman at the front desk swore she'd email it "immediately." 48 hours later -- still nothing. Called again and got the owner, Tim Tapper. He played stupid for a minute, then muttered, "Well, it takes me a long time to fill those out." You could hear him sounding out words like a slow child while he talked. They never filled the warranty out. Not a single word of it. They took the money, lied to my face, and spent an entire month gaslighting me because the owner is too lazy, too dishonest, and too incompetent to complete a one-page document. These people are morally bankrupt, thoroughly unethical, and as worthless as a cup of cold piss. Absolute bottom-of-the-barrel operation. Do not give them a single dollar. Absolute garbage operation.