Me and my boyfriend stayed at Sonia's place for 5 days and had a great time. The appartment has a great location, it's in a nice and quiet building, has few supermarkets around it and the best thing, we were able to walk to most of the attractions. It is a bit small but it has everything you need so for us it was perfectly fine
We didn' meet Sonia in person but she was very attentive and responded to messages quickly. We met her friend and her boyfriend and they were both extremly kind and helpful.
I highly recommend his place :)