Rapha is a super friendly person and was great to work with: quick communications, met us promptly at our agreed-upon time for check in and very helpful explaining everything about the apartment and making recommendations of restaurants (which were all great - definitely try Kornhaus, good food and interesting bar on the balcony overlooking the restaurant if you just want a drink).
Location is excellent. We weren't sure about that ahead of time as Bern is very hilly, but this turned out not to be a problem. Rapha's place is down by the river, so you do walk down a short but moderately steep hill to get there (and of course up the hill to get into downtown each day), but it was not a problem for us and less of a hill than we expected (we are average hikers). We were extremely pleased with the location. Only a few blocks from the beginning of the main part of town with rows of restaurants and shops, and only a 10-15 minute walk to most sights we wanted to see.
The bathroom has a tub with an American-style shower and shower curtain, which was excellent. Fantastic water pressure and easy to control temperature.
Close to the bear park, we enjoyed checking in on the bears every day as we walked to and from the apartment.