The Mezzo has a slightly smaller fold than a Birdy, is as well put together and shares the massive advantage of a lack of central hinge. All it lacks is suspension. But then again, one of my friends with a Birdy rather envies my Mezzo because he prefers a non-suspended ride. Retail price is around £550-£600, widely available from Evans and Cycle Surgery, etc and very good value. Been thrashing my Mezzo d9 for a full year on a daily multi-modal commute and no problems at all. Give one a test ride.