The location was excellent. 5 minute walk to the DLR and 10 minute walk to Tower Hill station Underground. Lots of small grocery shops around as well. The surrounding area of the complex looks a little dodgy but is safe, we didn't have any issues. The common area to access the apartment is in need of some upgrades, but the apartment itself is in good condition and nicely decorated. Beds were comfortable and the kitchen was convenient for cooking quick meals.
Ian was a great host, made sure he mailed the keys to the apartment to us, since we were getting in late.
I would recommend Ian's place for anyone visiting London in the near future.