We stayed for 4 nights. The apartment is in a great location, and very easy (& cheap) to get to from Ciampino via public transport. The check-in & out was very simple and trouble-free. The air conditioning worked well and was very much appreciated when coming in after strolling around Rome on a hot summer's day.
Parts of the apartment did appear dated - the kitchen in particular - but this didn't affect us much as we didn't do any cooking during our stay.
However... the following let the apartment down:
1. there was no wifi, which meant that we burnt through our data allowances pretty quickly. We were told that the previous occupants had stolen the router(!)
2. Small bits of debris would fall from the ceiling on to the beds . These would individually be very small in size, but would be very noticeable on the pillows in the evening when going to bed. This affected both bedrooms.
3. The toilet seat was broken (i.e. not fixed to the toilet...) in the small bathroom.
4. Limited supplies in the property. There were 2 bathrooms, so really ought to have soap in both bathrooms. But there were shops nearby where we could buy things like Toilet Paper.
But overall, we really enjoyed our visit, and the apartment is a great base from which to explore Rome.