Simon was a great host - very communicative, helpful with transit info, and even gave us a welcome gift of wine. We had one issue, which he responded to in under 5 minutes and fixed before we got home that evening.
The apartment is very chic, with high ceilings, a lot of light, and very comfortable beds.
The location is also pretty great, just south of the central area that you can reach by tram or metro in 5-10 minutes. It's directly across from a tram stop with 3 lines so very convenient even after the night train starts.