I had a Monkey, and was first in line for a Trail 125 (Postie) at my dealer almost two years ago. But I canceled my order for the Trail 125 then sold the Monkey after deciding they were simply too underpowered to maintain much speed on hills. I could be ok winding it out going 30 mph up a hill on a little 2-lane road but the cars and trucks following often became frustrated and would tailgate trying to "urge me on". The Monkey was ok once I made it to town with 25-40 mph speed limits, on relatively level roads (which there are few in WV) with 45 and under speeds, or very rural roads... but here these tend to be rough and the Monkey just wasn't fun on those with its limited suspension. This is where the Postie with slightly more suspension should be better.
I think a Grom or Monkey with a 250cc engine would be great fun.