After a month stay, we were sad to leave. We travel frequently and this is one of the best AirBnB's we've stayed in.
No place is perfect, but about the only things that might be an inconvenience are: only one electrical outlet in the kitchen, so you can't make expresso and toast at the same time (but you can move the toaster to the stand in the living room and make it there if you must do both at the same time); and if you are a heavy person, it might be a bit of a squeeze to get in and out of the shower door in the second bathroom.
On the other hand, here is a partial list of the marvelous things about this apartment: comfortable beds; nice linens and two soft blankets for each bed (instead of the heavy, bulky duvets in many AirBnB's); decent space to store your clothes and groceries; modern plumbing with plenty of hot water and good water pressure; quality pots and pans; a furnished balcony with great shade in the afternoon; excellent air conditioning and heating units in each of the rooms; good lighting in all of the rooms after dark; quality kitchen appliances; lift to get to apartment; and location - in the lovely Trastevere neighborhood, which is relatively quiet and has restaurants, buses and trams, grocery store, and pharmacies all within walking distance. For those in average physical condition, it's a reasonable walk to most of the main sights in Rome (20-50 minutes, depending on where you're going.)
Last, but not least, Claudia. She is the on-site person who greets you and makes sure you have what you need. She is a fountain of valuable information and wonderful to work with. If only all holiday rentals had someone as responsive, kind and caring!