Carlos' apartment was very cozy and the bedroom quite comfortable, all that was needed after long days exploring Geneva and the surrounding areas.
Note that it is a little distant from downtown (so if you don't have Swiss Pass, at least for me the 2.80 Sfr for a single bus/tram ticket in Geneva was a little cringey. I just decided to walk a lot most of the time and that can be quite distance to get to and from the apartment. But I enjoyed it)
Carlos was very welcoming and the check-in and check-out were smooth and easy. :) Geneva can be quite expensive so I think this is a reasonably good option for travelers!