Simon's apartment has a nice, individual, and homely style - it's just a very good place to stay. It's spacious, with big windows in the front and back which allow a lot of air through and compensates for there being no air conditioning (it seriously wasn't a problem for us and we stayed in the height of summer).
The location was also pretty great, just around the corner from a supermarket, as some as very nice cafes and restaurants!
In our five-day stay, the apartment was one of the best parts of it, and we'd be very happy to stay again.