I stayed at Fabrizio's for 2 weeks during a research trip to Rome and enjoyed my time there very much. You will find anything you need (including toast, coffee, tee, milk, juice and marmelade for breakfast- and space in the fridge in case you want to buy anything else) both for a short trip or a somewhat longer trip to Rome. Moreover the location is great: it's 2 minutes walking distance to the enterance of the vatican museums and less than 10 minutes away from the Metro that brings you to all major sites (and to and from Termini in case you arrive there).
All in all I would definitely come back to this place! Thank you very much Fabrizio!