Great location, fantastically central, and the check in and out was very easy!
If you are one person and you need a bed and a shower and you need to be central, it is a great place.
On the other hand, there are many stairs, it's smaller than the pictures portrayed, there is only one small electric radiator (that we could find) and the apartment/room got really quite cold without it on (November stay), the bed and covers are way too small for 2 people, the toilet extractor is always on and is audible from the bed so if you're sensitive to noise this might be irritating , there are no ceiling lights only a little lamp so quite dark...
Overall, we spent most of the day out doing touristic things so we didn't really care and we would probably stay there again because it satisfies most of our needs (other than needing bigger bed covers!), but bare in mind that might not be what you expect.