I was a little concerned about the walk to the tube, especially as it was going to be late after the shows, but it was great. We used Mile End as the red line was so easy to get in and out of town - we were visiting Kew as well as the O2 so it was perfect. there were some nice places to eat locally, as we got in after 4, it was nice to have somewhere to eat within 10 minutes walk.
The bed was comfy, the area quiet, good size kitchen and lounge. We were not there much it was a great base for exploring.
I did read about one review where someone was nervous about getting keys, but the Londis was fine. The route to the apartment is well-lit and felt very safe. It's right next to a school.
I would definitely stay again.