We spent two night at Caroline's apartment and it has been a good solution for us. at 5 minutes walk you can take the tram that brings you to the centre in just 15/20 minute. The neighboorhood is super cute with a lot of cafe, restaurants and place for drinks.
The house has multiple flats and the one we stayed is a simple flat that is clearly used only for renting, empty surface an lack of the lived house vibe. Anyhow, that depends on what you are looking for. We were satisfied with it.
The second room is actually the living room and the couch offers kind of a single bed once you cover it with sheets. My friend said slept very well despite not being a bed or convertible couch.
Checkin was smooth and Caroline replied to our queries in a short time frame.