My single room with a double bed was very small, but comfortable enough. The room was a little dark. The shared bathrooms were tight at best, fit for a contortionist at worst. The location was excellent, however, just around the corner from the Spanish Steps and the Spagna subway station, and for the location the room was surprisingly quiet (my room faced a closed courtyard).
There''s not much nightlife in the area (a few bars here and there), but there are good restaurants all around. There is no restaurant in the hotel itself; breakfast is not included.
Panda is reasonably priced and well located, but I''d stay there again only if I was on a tight budget. If you''re funds are limited, it''s a decent choice. For a better hotel for a similar price closer to good nightlife, try the Albergo del Sole al Biscone by the Campo de Fiori (see my other entries).