Having owned one of these for coming on 18 months now it has been a very up and down experience.
The Ups:
The torque is fun
Very rare that you pull up at the lights next to another
Dealers good (Riders Bristol)
The downs:
Why oh why do they make all the metal work out of the old baked bean cans?
The quality of fittings is nothing short of abysmal, exhausts that rot within literally days of a cold/wet spell, "life time" drive belts that snap at less than 5K - taking the drive bearings and rear wheel bearings with it, clutch slipping issues (though normally at higher RPMs in high gears ;) ) despite going back in three times now.
Horrible gear change - though mine was silky smooth until it went in for the knackered bearing work :(