Donatella's place is fantastic - it's very cute but has a great, modern bathroom. Location is also perfect. We found it easy to drop things off / chill out in the room for a little while between sightseeing activities because it is so central. Microwave / fridge were also really helpful for snacks and leftovers.
One warning - while there is an elevator in the building, you will need to walk up about 15-20 steps before you get to the elevator so plan accordingly if you have a big suitcase.