We spent a week at the Boston Marriott Copley Place on a "high floor" (more expensive but same rooms as low floors), room 3319. Let's give the good news first. Great view from the 33rd floor, good climiate control in the room, very friendly and good maid service, very clean, what food serivce there is (one restaurant; see below) is very good (though expensive), outstanding elevators (external floor choice, fast, no lines or crowds), great pool and exercise facility, free self-serve guest laundry, comfortable bedding.
Now the bad news, some of which is basic to a comfortabe hotel stay. The rooms are very small (typical Marriott-small, IMO). They're fine for a single traveler, but my wife and I had a hard time staying out of each other's way. The small closet and two drawers weren't even close to being enough for our week's luggage.
The worst issue with the room, and a problem at many hotels, was the extreme lack of LIGHT. It was extremely dim (except for the bathroom), with bedside lamps too dim to read by, a lamp over the quasi-desk/table that's barely adequate for reading, and no other lighting in the main room. To make things worse, the floors, tables & tabletops, etc., are all very dark. Maybe twenty-somethings can tolerate such stupidly dim lighting but senior citizens are out of luck.
There is exactly one restaurant in this enormous hotel, and it's a very loud sports bar most of the day and evening. The menu is adequate and the food very good and plentiful. Maybe guests are expected to seek out local restaurants, which is fine when the weather's good, but often inconvenient. Room service, from the same menu, is a joke. It comes in paper bags with plastic covered containers. (That's true of many US Marriott hotels, perhaps all.) Forget cart-tables with tabecloths and real china and metal utensils (no room for them in the cramped rooms anyway), and forget trays with real plates, and silverware. Romantic room service with a litte flower in a vase, or breakfast in bed with your spouse, just isn't part of the expensive Marriott (or touted "Bonvoy") experience. (To be fair, the room-service-in-a-sack is fast and the items quite tasty.)
The telephone concierge is an AI voice, and generally worthless. To get to a real person one has to listen to several sentences of spiel about how happy "she" is to help you (but she rarely can), then ask for a real person.
Beware the bathroom lights. They turn off when the room is empty (for those who need a beacon in the night), and THEY TURN OFF SUDDENLY WHEN YOU SHOWER FOR TOO LONG. The motion sensor doesn't pick up movement behind the shower door. I learned that while balancing on one foot and washing the other. The switch itself malfunctioned 3-4 times during the week.
Smaller items: There are no complimentary toiletries and no complimentary bottles of water (in spite of our being Bonvoy members, amassing "points" for I-don't-know-what; fortuately, they work for lesser Marriott properties such as Springhilll Suites). The water bottles are clearly marked $5.00 each. The free Bonvoy membership entitles one to free Internet service, but getting online is a little misleading as they try to get one to pay $12.95 or more per day (unnecessary, but it's easy to click the wrong button---check your bill on checkout). The TV guide regularly gets the programming wrong (probably not Marriott's fault).
That's it! Our next stops will be in other Marriott properties (Springhill Suites, etc.) but pointedly not in their Marriott hotels. read more