Re the apartment - it’s really as nice and stylish as you can see on the picture. It’ll be perfect for short-term stay - great location, amenities (special thanks from me for coffee-machine:)), easy to get everywhere (not only piazza di Spagna or Trevi fountain, but even metro if you need), lots of cafes and shops around, etc.
Re the host - Barbara is a beautiful person and really an incredible host, one of the most attentive and nice which I met. She was always ready to help and assist - thanks a lot to solve all the issues. Not only she provided info re all facilities and sightseeing around, but also assisted to get the taxi from airport, thank you!