Appartement is beautiful clean, we experienced some issues with heating, with cooking plate, the appartement is handled by a company that provide support services and extra services for additionnel fee, you never meet the owner but you are received by an agent during your check in and you might meet an agent during your check out if you are late to go by 10 minutes.
After your arrival you have to by first load essential stuff that would be nice to have when you are for a long stay in such appartment like soap, litchen cleaning materials ...
Rome is beautiful city the appartment is at 30 minutes walking from trevi and piazzia espagna or 10 minutes by taxi.
There is a very good pizza restaurant in the corner and several shops where to buy water or something else to eat till midnight.