Charles is a very nice and genuine guy, very welcoming and, by my experience, willing to do the extra mile to help you!
The communication with Him it has been quick and precise (through messages and later on in person), and the house it has a real personal touch;
Charles is an artist, so you will find loads of different paintings all over the house, which I found really nice! The location of the house is pretty central, so you can reach many part of the city quite easly using public transportation; the nearest tube station is about 10 minutes walking distance.
I would personally recommend staying at Charles place, it is an experience that i have really enjoyed!