There are a whole host of great things about this BnB, most of which were outlined in other reviews: the room is very large with lots of closet space, outlet plugs and a very large and comfortable bed, the bathroom is ENORMOUS and entirely for the guest's use, with many extra toiletries for guest use as well, and the kitchen has a refrigerator dedicated to the guest. The location, in zone 1 and a short walk to both Paddington and Kensington Park, is great value for the price.
Where I had any issues it was primarily the situation of being in the same basic living space as the owner, so being a light sleeper, things like the radio playing in the morning woke me up a couple of times, and there is just limited privacy in this setup. I also found, with this being a basement flat, that my Internet was spotty, and it is generally a fairly dark environment. Overall though, these were relatively minor negatives for a very nice place to stay.