This apartment is very attractive and has every amenity one could hope for. It is clean and well organized and the location is wonderful. We were comfortable, appreciated the dining room table and comfortable sofa as more than we experienced at other stays.
I would recommend asking for very specific instructions for finding the exact street and door. In fact, a photo of the front door could be helpful. It's massive and Medieval, which can be unexpected for your average North American tourist who is looking for the entrance, especially if it's already dark outside. It's obvious once one is there but not at first glance.
I do recommend walking from the train station to the location (about 20 minutes) but only if you are not carrying very much. Our suitcases were heavy and so in the evening and with the rain it felt like too much of a walk, but we made it.
A note for very tall people (like my husband): the second floor loft where the bathroom, bedroom and laundry are has a number of very low beams in unexpected places. This totally contributes to the wonderful character of the place but you'll need to be careful not to hit your head.
We had a great stay and highly recommend Mirella's place.