This apartment is in an unbeatable location if you want to be in the old town, right among the shops, cafes, restaurants, and the culture of the cathedeal etc. Late evening it becomes much quieter, so no problem sleeping, but if you're after a late night then lively bars are 5 mins walk away.
The apartment itself has everything you need. We only stayed 4 nights, and didn't do any cooking etc, but you could easily make this a base for a much longer time. Everything is good quality, and really nice decor. We'll be back!