Great location. Very clean and modern, particularly the kitchen and living room.
Shower is high quality and easy to use.
Check in/out was super simple. The location is also excellent if you don't mind going up 4 flights of stairs a few times a day (they are not very steep steps, at least). Being so close to the Metro however, there's not a lot of walking you need to do to get to the Old Town, and even if you do walk it's conveniently central.
I especially liked that the check in guide includes details of how to get there from the airport (1 bus then 1 metro) - very handy.