Short term rentals of a few days: Great location; nice shower; comfortable bed; lovely terrace.
Long term rentals: It's not a good option. We stayed for a month and couldn't cook a large meal with 2 small sauce pans, 2 small fry pans, poor knives, no storage containers for leftovers. No freezer; no oven; no cabinets for food; no hooks for jackets and coats. Must hang them in the bedroom closet. There is only the couch in the living room so 4 people would have difficulty being comfortable which matters long term. Although the two of us are avid walkers and 62 stairs are no big deal, the last 20+ are extremely steep, narrow and have uneven tread. For long term stays and going out several times/day, this became tedious. Finally, for long term, you pay utilities and it was confusing and seemed somewhat random. For the price, we have stayed in more suitable in florence. Keep looking!