We loved staying in Canary Wharf as we went there so I could do some work with a company located in the area. The location of the place is a little off the beaten path, but it was a quick walk to get to train lines and the underground so it wasn't a problem and there are a lot of great places to eat in Canary Wharf.
I would say that the layout of this place is pretty segmented. There is only one toilet, and it's located downstairs, away from the rooms. There is a bathroom upstairs but it only has a small shower, sink and washing machine. If you look at the photos in the post, they are correct but when you arrive, you see that everything is pretty segmented and it's not a very open space. If that's what you like, it will be perfect. If you're there to hang out with family, it might not be great.
It was a nice place to stay overall. On a very quiet street. Sanya was AMAZING. There were a few little issues that she took care of IMMEDIATELY. I think this is a great place for the price.