I just bought a second-hand Lead 100, and very happy with it indeed. Keep reading good things about it, which makes for good after-sales satisfaction. :) I have only 2 gripes about it, which are more practicalities than faults as such.
One, the under-seat compartment is too small for even an open-faced helmet. My neighbour happily plonks her sizeable RJ Tomcat under the seat of her ancient Vmoto Milan, yet the Lead, a bigger bike, can't fit it (or any open faced helmet I've tried). You definitely need a box. Bit of a shame.
The other one is there are no gaps in the wheel rims, so the only way to chain-secure the bike is to park it next to a pole and wrap the chain around the exhaust or something. You can't do the through-the-wheel thing with this bike.
Both are simple, practical issues which it seems other, lesser models have taken care of. I love this bike, it's like a reliable friend.. but I have to wonder why they didn't give us just a wee bit more storage, so a helmet can fit, and somewhere decent to wrap a chain around.