We got lucky and because the Heathrow Best Western overbooked, we ended up getting upgraded to this location. Its literally 2 minutes away from Earl's Court tube station which means during the day time its alive and entertaining, and when its time to sleep its peacefully quiet. Top it all off with a very good English Breakfast and excellent service, and I can't imagine staying anywhere else next time we come.
The rooms are a bit of a tight fit, but what do you expect in London? The neighborhood is amazing, though things do shut down quite early for my tastes, around 9 or 10 pm. Everything is extremely clean though.