A great place indeed! Guy's place is nice, clean and tidy, a lot better than any claimed 4 stars hotels which are over charged with bad service quality. Guy is a great host and he is right, he is literally invisible at home but when you need help, he will always respond quick.
The location is just super....it is at central london so it is just easy to get anywhere.
I will definitely stay in Guy's place when i visit London next time