I stayed two separate nights at The Westin Baltimore BWI and had a different room each time.
The first room was at one far end of the building and had no Wi-Fi at all. (The guest network did not even appear as an option on any of my devices.) The second room, which was much closer to the central elevators, had a proper connection.
The sleeping and lounging areas of the room were very nice. The comments I have here are that the "bright" and "dim" settings on the lamps in the room were basically the same, and that neither of the two pillows provided was in the "Goldilocks zone" (one was too soft, the other too firm). Otherwise, the rest was great—mattress, curtains, available space, noise level, view, etc.
The bathroom was generally good, though the water pressure was quite low. I really liked that they had liquid soap dispensers in the shower—rather than relying on bar soap.
Overall, very good experience; easy 4/5.