This place is at the intersection of two very busy roads. Noise from traffic can be unbearable. I wouldn't book this again in summer when you need to have the windows open.
There is no air conditioning which is necessary especially in heat waves, like the one that was there when we visited. it is not ideal if you have a lot of heavy or big luggage as you will need to lug it up steep stairs.
Its location is ideal in terms of access to the tube.