Loved this little room. It's small but very pretty, clean and comfortable with everything you need, including solid wi-fi, a well-equipped kitchenette and even a hair dryer. The tube is a minute's walk away as are several bus stations, and there's a grocery store and a pub right below and a laundrette across the street. The neighbourhood itself is a pretty part of central London. The street can be noisy but you can't hear it when the windows are closed. Size-wise, the room would be great for a single person or a couple. Self-check-in and self-check-out were super easy and frankly I love not having to talk to anyone.
The one issue with this room (like everyone mentioned) is that it's four very high floors up, quite a nightmare to drag a big suitcase up and down. It's doable, just be warned that it's not fun. The mattress and pillows could be better quality, too, but that's just nitpicking. All in all a great experience.