I can only reiterate what everyone else says about this place.. Alessandro & Fiamme are super hosts!! Their home is stunning - and you are made to feel welcome from the moment you arrive..
We stayed for 10 nights and it wasn't long enough! Our room was beautiful with original frescos, original tiled floors and wonderfully high ceilings...the photos do not do the place justice..
Directions from town are easy enough - we hired Mobikes while we were there and can highly recommend them too... took 17 mins from the front door to the Duomo... about the same on the local bus.
Just one tip - don't go to this place for a weekend - go for a week... or more if you can...
Great communication, very easy going, a home from home...
Don't think about it. Go do it....