I have just stayed at the Hotel Forum for the second time and would thoroughly recommend it to anyone travelling in the area.
The rooms are large, comfortable and kept very clean. The food was very good the last time I visited, although I didn't have the opportunity to eat there on this visit.
The hotel is very close to the A1 and has good links to Perugia and Sienna.
As a base for exploring this part of Italy I would thoroughly recommend this hotel and look forward to going back there again in the future.