Just completed my first stay here (as the property was 50-70% cheaper vs. the going rates in central London) and was perfectly happy with the stay. Standard cookie-cutter Moxy design, 3 mins away from the DLR station, could get anywhere of relevance in London within 30-40 minutes by public transport.

BTW, I walked from LCY to the hotel as I was travelling with a backpack only, and while it wasn't bad, I wouldn't attempt it with actual luggage or in inclement weather.