Our family (two adults, two kids 12 and 10) had a perfect four nights in the apartment at the end of January. Photos are 100% accurate. After a long day of sightseeing the kids enjoyed the WIFI and Sky TV (We watched the Superbowl and German Bundesliga, you can switch all movies and also the sports channels to English).
Lorenzo was a perfect host. He organized the pick-up from the airport (back we took a taxi; taxi stand right around the corner), met us at the apartment, helped us with the luggage, etc. He is very attentive and a great communictor via SMS.
Towels, coffee-tabs etc. were provided. Beds were firm and comfy.
Everything as described in the other reviews. Yes the shower is small ...
Trastevere is a lovely place. All the restaurants we checked-out were great.
Rome is easy to explore on foot from the apartment. If you want to use public transport we suggest Google Maps and switch directions to bus. It will always show you what bus will leave around the corner which will take you directly to your destination.
Two (very minor) things that didn't spoil our stay at all:
- coming back after a long day, you can smell the sink/toilet and we had to air out the place for 5 minutes
- one day we had ants in the bathroom but we found spray under the sink and problem was solved after 2 minutes.

We highly recommend the place! Thanks Lorenzo!