we were 2 moms and two teenagers, and stayed in the apartment for 6 nights. it was just great! first- it is beautiful, with lots of cool stuff around which gives you a home-like feeling. the kitchen had everything we needed including the dishwasher, washer/drier, cleaning supplies and condiments. the girl that met us left bagels, eggs milk and OJ- it was wonderful! and so thoughtful. the bedrooms were very good. the master bedroom was large and had small bathroom attached. the smaller bedroom had a separate large bathroom. we enjoyed the living room and the dinner table.
WIFI was also great. didn't watch TV though (too busy ;-) ) so can't say much about that.
the location as great. two minutes from marylbone station, 7 minutes from baker street. a nice pub next door with good Thai food. a Tesco nearby as well. very quiet.
it is just excellent for 4 people. thanks a lot!