The apartment itself was amazing and clean! The interior is super cool, modern and handpicked, there is plenty of space for 2-4 people. The small balcony offers a nice view over the river, a church tower and the bridge. The walls are very thin, so you can hear almost every noise and step of the neighbours but I guess that's the price for living in the old town. The location is perfect to explore the city - most things to do are 10-15 min walk away so we didn't need any public transportation.
The company who rents the apartments is well organized and even the late check-in at night wasn't a problem (against an extra fee). Would definitely recommend this beautiful place :)