While the Volpe's derailleurs are MTB stuff, the gearing isn't very far off from road. Compared to road triples, the middle ring is only one tooth less and the big and little rings are each two teeth less. Not a major deal. If the 11-32 wide-range MTB cassette isn't your thing (I don't like them), nine-speed road cassettes come in close-ratio versions (like a 12-23), are pretty cheap, and work just fine.
And MTB gearing can work very well for commuter/city type riding, IMO. I don't have that much experience compared to many here, but the wider range gears seem to keep me from constantly 'hunting' for the right gear, so I settle in and just ride. Road gears can seem so close that I'm always shifting. But, different strokes...