I am in London for a few days on a course. The course is Chi Kung it's one of my hobbies. I am also interested in Tai Chi and often come to London for seminars on both these pastimes.
I meet Gary on a 2 year Chi Kung teacher training course and we have continued to study with same school just completing year 1 of the advanced training. He has always been cheerful, supportive and fun to be around.
As a host on Airbnb (and previously Crashpadders) I understand the qualities needed in a guest and would not hesitate to recommend him. I am sure he would be respectful, clean and pleasure to have around.