The apartment is really great, a 20min walk from the city center. We never used the public transport, we just walked (and there's no better way to discover a city). Also, it's not right in the city center so if you want to travel in the country, it's much more easy to leave the city (we did it a lot). If you rent a car, just know that it's sometimes a bit complicated to park in the courtyard (because there are more cars than space) but it wasn't a problem: people moved their car when it was needed and we parked outside during the night (when it's free) so it was easier to leave in the morning.
You've got everything you need in the apartment, even extra blankets if you're always cold (like me). Arriving and leaving was really easy with the self-checking. We spent an entire week there and we could have stayed there even longer, it was really nice to stay there. I totally recommend it.