I like that I can pick up my own mail and nobody else is going through it Love this post office…read morebest thing I ever did !!!

long lines never enough staff…read morenot helpful in solving problems Couldn't find mail after we stopped it twice Should have dedicated passport section instead of tying up regular staff

Always fine, always a nice job. Never takes too long. Wish the parking lot wasn't so beat up. But…read moreall good

The Mount Sinai location is more convenient for me, but the Miller Place location is just better…read moreall around. So 9 times out of 10, I go out of my way to ship from this location. The staff is always friendly, there are plenty of parking spaces, and they always have the supplies I need. It's a lot bigger too, which is a big deal, especially when it's crowded.

I don't know what it is, but every time I mail a letter from this post office.. it arrives much…read morequicker than if I sent the same piece of mail from another post office! It's amazing. The staff inside are kind and friendly, unlike other locations where they're crabby and snippy. Lines typically move fast. Location is clean.

My favorite post office of all everyone is so friendly everyone is so helpful place is very clean…read moreand coming here since I've been living in a neighborhood 30 years

Every single time I am in there, the one, middle-aged blonde worker looks so annoyed to be…read morebothered. You wait a few minutes, she comes out with blank stare, finishes and goes back to office. It often feels like no one is there. It also closes for lunch for over an hour. Avoid if possible.

I have always had great service at the Port Jeff PO. It is small with just one terrific lady…read moreworking so yea, there are times she is in the back doing other tasks. Just ring the bell and she comes right out. Want lousy service, go to the Malverne PO where we used to live.

This place is a joke. They charge exorbitant prices for boxes and shipping and they refuse to use…read morethe boxes that the item originally came in because it is an Express box, even though the label is paid for. They just want to gouge the customer. They messed up a shipment a few months ago which ended up costing me $150 and I should not have tried to use them again today. My bad. The Mt Sinai, Seldon, and Sayville stores all have the same owner. Don't use them!

Walked in, empty store, 2 young men looked up quick, then stood there avoiding eye contact. I had…read moreto ask if I'd be helped, awkward. Reluctantly one threw out his hand, took my package, scanned it, shoved out the receipt, zero eye contact, not even a grunt. The strangest, most rude & coldest experience. I'll stick with Rocky Point FedEx...guys are eager to help, greet you when you enter, you know...like normal.

The mail delivery person for Old Field Road has consistently put certified mail (requiring a…read moresignature) in my mailbox and then it says on the USPS website that these items were "left with an individual." i have cameras and can see the driver just putting them in my mailbox. Unreal.

The worker there worked hard! Good memories, very surprised people! I live in East Setauket! I love…read morethem! !!

Apparently this US post office runs 1 minute faster then the rest of the world. I showed up at…read more4:59 and I was told "Our scanners say it's 5:00" so they're closed. I find it hard to believe that an iPhone that is automatically synced to the time is inaccurate and yet the "scanner" has the accurate reading? Comical at best.

I opened up a PO Box here with cash. Paid for a year, got my change back with a receipt of course…read moreand two keys. A week later they try to convince me I did not pay and that I needed to show my receipt because my transaction wasn't in the system, or pay again Obviously the lady pocketed the $100 bill and got away with it, how can a US Postal service be so shady is beyond me

The Middle Island post office is one of the best around for top friendly service, cost-effective…read moremailing advice and cleanliness. Laura is the Postmaster and she can offer free advice on everything A-Z pertaining to business mailings and postal solutions. Her knowledge is exemplary and her willingness to help you is genuine. The front counter 'A' team consists of Tom, Maria, Joanne. Bob recently joined the team. It's a big plus if you do direct mail marketing and have many Packages going out on a daily basis. As a consumer, if getting your packages mailed on time at the best rate is important to you, then The Middle Island post office is where you want to do your business. --Andrew Linick, TopMarketingAdvisor@gmail.com Box holder and major direct mailer and mail order expert since 1973.

Very friendly at this post office. Nice and clean. I just wish they carried more of the flat rate…read moreshipping boxes.

Whatever manager was working today was absolutely terrible. Line was out the door and she stood…read morebehind the ONLY employee working. When asking if she was training or working she said "I'm the manger!"... guess managers don't know how to lift a finger anymore. Horrible horrible !!!!!!

USPS of SELDEN Bravery Honor Loyalty Sacrifice…read moreOn the frontlines serving our communities in unwavering commitment and dedication honoring CDC mandate abiding by federal and state guidelines...equipped in PPE. To the call of duty in these critical times operating in top priority for customer fulfillment collaborated with UPS SurePost bringing prestige first class service to residents and businesses. In professionalism, respect and great dignity. Structural Honor Service Excellence

I went in to complete some Amazon returns on 2/21/2026 around 2:30 in the afternoon. Robert was…read morethe only one behind the counter for both sales and returns. Another employee (male) was flitting around saying he, "wasn't on the clock yet" even though both lines were long. Robert was calm, professional and efficient at meeting the needs of customers on both lines. This young man deserves to commended, the other should be fired.

I always have a good experience at this store. the usually have many items in stock, copy center…read morestaff are helpful.