Mine's a 1991 model with 6K on the clock.
Very comfortable ride, the suspension is surprisingly plush, perhaps a little wallowy on the tarmac but very nicely sprung for off road.
The bike is physically tiny, not much bigger than a C90, which makes it very handy in mud and snow as you can just yank it about / pull it out of whatever it's stuck in.
A rev counter would be nice.
Performance is as good as any 100cc stroker.
The disc valve intake arrangement gives a useable spread of torque, it's not necessary to rev the nuts off it the whole time.
Acceleration is pretty good - realistic cruising speed is 50 MPH, I've seen an indicated 63MPH but I didn't spend long at that speed.
Reliability is excellent, just set the points and decoke the baffle occasionally.
There's nothing wrong with the brakes, they're no better or worse than any other drum brake commuter bike.
The electrics are very good (for a 6V system anyway), the headlight is not particularly powerful but the indicators do actually work.
It has a weird clutch lever pulls up the sidestand arrangement, but it works so it doesn't bother me.
I had a TS125 (which kept breaking down) followed by a TS185 (which kept breaking down, then blew up), the KE is not as quick but it's a lot more trust-worthy.