I spend 4 nights at Usman's place during a conference visit to Excel London. First of all, Usman's place in the perfect location if you visiting Excel, it's a few minutes walking. Usman was very helpful and explained to me the best way how to reach the city centre and airport, also he showed me a nice path for running near Excel and we discussed bunch of different topis. At the end of my journey, my flight was cancelled and Usman generously allowed to stay until the next possible flight at evening time.
I highly recommend him as a host! I will definitely stay with him during my next visit to London.