Gaberiel's place is perfect.
First, it has an amazing location. It is in the city center. So basically you can reach everywhere easily, either by tube or even on foot. It's just beside the Baker Street where you got the Sherlock Musume, 10mins to oxford street, Selfridges etc.
Secondly, the room was big with two windows. We had 5 big suitcases and the room was big enough to arrange all of the luggages. That's perfect. Also, It's cozy and warm at night in london's winter time. The bed was comfortable, unlike other places' which was always too soft ( I personally dont like soft beds).
Most importantly, Gabriel was so thoughtful that he even had lockers for guests to put their luggages if they need. We had a early flight the day after we checked out, and Gabriel let us leave the luggage at his place so that we didn't have to walk around the city with FIVE HUGE CASES. This is definitely by far the best host I've ever met in Airbnb.
If you are looking for a place to stay in this big big city and expect a fair charge, do not hesitate to choose Gabriel's place. Highly recommend! Would definitely come back the next time I visit London.