+1 for the Utopia. Here's a tip. If you are average height, like me, then you need to adjust the backrest so the stem angles forward quite a lot. This makes removing the single seat a real struggle, unless you back off the knurled adjuster nut, then you can flip the stem almost back over and the seat pops out easy. So that you can get the seat back adjusted exactly right each time, wrap some self-amalgamating tape round the exposed threads when you have got it set right. Then you can wind it down til it bites and you know it's spot on .
Tip 2 about the seat .... my key has been modified for the remote alarm, and it feels like it's going to twist apart when I use it to undo the seat. So I got a length of strimmer line, put a loop in one end and tied the other end tot the underseat catch. The loop sticks out by the right suspension, and is easy to pull.
General point about the Utopia - really reduces wrist ache from hanging on against the wind blast (flyscreen only). And when you open the throttle you get a shove in the back rather than a tug on the wrists.
Love it
Mike