The room was cozy and more spacious than I expected. Had everything I need. Lots of options for cereal, but only cereal and no other food(which doesn't actually matter because I'm a cereal-killer😉). Nothing very inconvenient.
As I stayed for seven nights, the only thing that bothered me was when new guests came, who didn't know that the bathroom has no drain, and made the bathroom flooded.
Apart from the room, the location is really nice. Close to everywhere in the city. Only takes 15 minutes to Heathrow via Heathrow Express. Also very nice if you have plan to visit other city as a day trip using trains (Paddington Station). Full of greens in neighborhood. Up there is Regent's Park and the below is Hyde Park.
Here are some additional comments for Korean visitors:
영국 물은 보통 수돗물 혹은 brita 라고 필터가 장착된 물병에 수돗물을 걸러 마시기 때문에 숙소에 물이 없는 것이 오히려 자연스러웠습니다. 한국 분들은 보틀에 담긴 물을 마트에서 사서 드시는 게 훨씬 편할 것 같습니다. 아래 다른 분이 물 없는 것을 불편해하셔서 몇자 적어봅니다.