I have a hard time trying to think of anything to improve or critique. We were very satisfied, felt pleasant and welcome and found pretty much everything we hoped for. The flat is in the center of the most historic district and just a few steps away from the cathedral, the castle, the monastery, the historic tram line, the river, restaurants, shops... Literally almost everything most visitors will want or need is within walking distance.
Maybe one small warning, you need to be OK with climbing some steep stairs.