No bad experiences, however, it would be interesting to have more food from local bakers instead of processed sweet breads, however I understand that may add more cost.
I had a great experience with the staff. Hours are strange for check in and check out, you'll want to make sure to take a peak at them before traveling in case they've changed( check in 15-1900, check out 10-1300) However, the woman that checked me in was incredibly welcoming and funny. She has a great knowledge of Siena. She was up to date on all local events as well as places to see that are on and off the beaten path. She even helped me with some flight snafus. The location is excellent, literally right off the Palio. As some other guests noted, you will surely, in the summer time have excess noise as it is is a main tourist area. It was however, for me, just off on a side street enough that the noise level truly wasn't too bad. The AC was also nice. I believe if I had to have the window open my experience would have been different with sound. The room is simple. I've traveled before to Italy and stayed with local Italian pals, and no, the decor in most Italian homes is not extravagant. A bed, wardrobe, desk really is typical. The bed isn't the fluffiest I've stayed in, but it was clean. I had a fridge, good sized private bath with great water pressure. Breakfast was provided. Again, simple, in every Italian way-a coffee, water, processed sweet breads, sliced cheese and two deli meats, fruit tart, yogurt. I was right off the breakfast space and although I heard people in the morning, it didn't disrupt my sleep. Depending on the manners of who is visiting, your experience could be different. Their set up is great too in allowing people to enjoy the rest of some of the day without their luggage while they explore after the 10 am check out time. Much appreciated! For the price, location, and staff quality, I would definitely stay here again.