Excellent location that is easily within 20 minutes of any place you need to see in London. Bella is very responsive and accommodating. There was a lightbulb out in the bathroom at the beginning of our stay and she fixed it immediately.
The shower, however, is so small. You can't close the shower door and turn a full 360 degrees. The drain also barely drains. Just keep this in mind if the shower is a big deal for you. Overall, I'd recommend Bella and this unit.