My wife and I stayed in Apartment Perugia for a full month from Mid Sept to Mid October. We were extremely happy with the apartment itself and the local environment. The apartment was fully equipped with everything we needed (including a washer/dryer, internet and a very nice stove/oven combination). The immediate neighborhood had two nice grocery outlets, three pizzerias, an Irish Bar, a meat market, two bakeries and two wine bars (not to mention Licks - a great Gelato shop).
Simona was a great host as her recommendations for dinner and activities all over Perugia and Umbria all worked out very well. She was very responsive and helpful with all our many requests.
As advertised, the apartment is extremely convenient to the main square either through the steps or the elevator and escalator at the Minimetro station. The Minimetro station only 5 minutes away made trips to the train station extremely easy and quick. The main bus terminal in town was only about 5 minutes down the hill from the apartment. Use of the intercity bus and trains made exploration of the hilltop towns in Umbria and Tuscany very easy.
If you go, consider visiting Spoleto, Assisi, Spello, Gubbio, Cortona and Passignano sul Trasimeno and Isola Maggiore on Lake Trasimeno. All were worth the time and easy to reach using the buses and trains.
My wife and I look forward to returning in the future.