This is a tough one. Charles is a great host and there were lots of things that we liked about his place. The yard was lovely, the apartment had solid amenities and, the out-of-date bathroom notwithstanding, has been nicely modernized. Communication was excellent and Charles definitely takes his hosting duties seriously.
The challenge for us was the noise. The unit seems to be a converted basement and so there is effectively no sound insulation from the movements of the upstairs resident. In our case, the person upstairs was extremely active (walking around, opening and closing doors and cupboards) directly above the master bedroom between the hours of 10pm and 3am. Nothing that Charles can do about this, unfortunately. The front bedroom, while subterranean, offered minimal respite from sound as it picked-up low-frequency road vibrations from the fairly busy street out front.
Bottom-line: if you are not sound-sensitive or don't mind sleeping with ear plugs in, this could be a great spot for you. If you have any sensitivities at all, or don't like sleeping with earplugs (or both), this may not be the spot for you.