Naming the specific Residence Inns where you have experienced less than satisfactory service can be extremely helpful and sends up a red flag to let others know what to expect.
As a rule, sweeping generalizations can do a huge disservice especially to those Residence Inns that strive to deliver top service and accomodations. For example, I had a great stay at the Residence Inn Boston Tudor Wharf located right on the banks of the Charles River and a short, pleasant walk across a bridge to downtown. Spacious room, great view, and friendly service. With resident-only parking zones everywhere, Boston IMHO is non-resident friendly and RI valet fees were pricier than expected. But that's Boston, not the RI.
The RI Poughkeepsie, NY is near Vassar College campus in the picturesque mid-Hudson River Valley. Spotless accomodations, a super-friendly night crew and guest-centric Front Desk staff. Well constructed, we slept so soundly and had no idea that two rival sports teams were at the hotel partying until we encountered them in the lobby checking out. I can't wait to go back there.
If you're traveling I-95 in eastern Connecticut, check-out the Residence Inn at Mystic Seaport. Great choice for a quiet and cozy 3-day family weekend to take in Mystic, the Aquarium, Mohegan Sun, Watch Hill, Newport and other attractions all within driving distance. A great value especially compared to the Mystic Marriott Hotel and Spa one exit away. The service took a real nose-dive when they abruptly closed Concierge last November.
The RI Meriden, CT near the campus of Wesleyan in Middletown, CT has seen better days. Except for the sliding French doors and the kitchenette, the furnishings and bathroom really need to be refurbished. The bathtub wall had a two foot crack and the hot water turns cold after a few minutes. At BF, the housekeeping staff all showed up all at once at 10 am to clean out the food. Unless there is no other option, request a room that faces west. The east facing rooms are within earshot of the traffic on I-91 to Hartford. Awful. Best part of RI Meriden was checking out.