My wife and I spent four weeks in this lovely apartment--most of the month of May and a few days in June, and we loved it. The view from the terrace is, of course, phenomenal, but all the north-facing windows (all but two) have such views too. I loved just standing in one of the kitchen windows each morning as the coffee brewed.
The apartment's location is perfect. Just a stroll down to the Campo, very nice restaurants close by (our favorites neighborhood places were Vivace and 4 Cantoni--the latter's cacio e pepe is perfection). What is amazing is how quiet the main bedroom (the Pienza room) is. A couple of nights, there was a rock band playing down in the Center. It was pretty loud on the terrace, but in the bedroom we slept perfectly. And the bed--by the way--is very, very comfortable.
Monica and Fulvio are kind and courteous and offered their assistance several times, but we found Siena not only lovely but easily managed. A gorgeous city, it is, and this apartment is the perfect place from which to enjoy it.
Robert & Kim, Moscow, Idaho, USA