My boyfriend and I stayed in Boris' studio for only one night, but we had a great time. At first we wanted to stay somewhere more central, but in the end we were really pleased with the location. There are plenty of restaurants near by, and it's not too far from Hammersmith bridge and the Thames. Many tube lines are a five minute walk away.
The flat itself is perfect for a city break. We loved the skylight and the smaller details like the super-comfy bath mat.
The price seemed fair, as it all had everything that we could need for a short stay, including the kitchen. If you're used to warmer weather then don't worry about being too cold, as the studio is kept very toasty!