The good: close to a tube station which is convenient when coming/going to Heathrow. The room was somewhat cleaner than the hallways, found a used bandaid after check in.
The not so good: the hallways by the room were very dirty (looked like the carpet had not been vacuumed in a while). Also the beds were uncomfortable. We purchased breakfast in advance, which was a buffet. The food was not good, the area looked like it was not cleaned thoroughly. I was hesitant to eat much since felt like there was a risk of getting sick (the food was not hot in the buffet where it should have been).