I have stayed at Mary's many times and would recommend it to everyone. Efficient, professional host who responds to messages very quickly. Clean, double bad en-suite rooms. Great location not far from some good restaurants and the Docklands Light Railway (DLR). Perfect for professionals working in Canary Wharf (very walkable, but the DLR goes straight there as well). Wifi always works perfectly. There are great touches like USB recharging sockets next to the bed and europlug converters provided. Always a good stay.