Highly recommend staying here. Very cheap for central London and incredibly good value. Staff were very friendly and helpful.
Rooms are tiny, but they're more than suitable for a 1-2 night stay. The bed is tucked right into the wall, TV right above it with Sky channels (including Sky Sports and TNT Sports!), compact en suite with shower. Lights, blinds, air con are all managed by a little controller on the wall, with different modes and settings.
The lobby was really nice and features a little cafe. Do be aware that they add the 12.5% service charge to EVERYTHING, even a single drink you buy from the bar yourself, which I really don't agree with as I was unaware of it and they don't inform you. Had a pizza there and it was actually really good. They sell bottled beer too, peroni, moretti, brew dog and then a couple of ciders.