We are from Brazil and stayed about 30 nights at Chongyu apartment.
It was a great experience. Amazing location within 5 min walk from Victoria station, big transport hub in city as well as 15-20min walking from Westminster abbey/Big Ben.
It is on 4th floor, on first week the lift was not working (she advised us in advance), now it is fixed. But check it before if you have mobility issues.
The apartment is beautiful and cosy, with kitchen (oven, microwave, fridge, dishwasher, toaster,…) and laundry well equipped/stuffed.
The room is ensuite, spacious for 2 people. Bed is comfortable, large wardrobes. Bathroom is little old, but totally functional, shower box with hot water.
Besides this, Chongyu is extremely sympathetic and answer rapidly. In time we stayed there, Mary (Chongyu friend) was in her place, and she was also very friendly and quiet.