Yes I have one of these and use it for my commuting in the city, it works well although alot of other motorists are getting extremely jealous. Right now I am getting about 64mpg down from about 68mpg(.7 gals) during the warmer months, I like it alot and the fact that you have to fill up every 64 miles for only the cost of a gallon of gas, I say raise the prices. LOL.
I have 3400+ miles on the bike and the only issue so far has been the oil seal which has popped out 2 times, after reading the schematics I just have to remember to tighten the parts that hold the oil seal in place. I purchased an oil cooler thinking that would cut down on the gases, pressure and temp of the engine, so far it looks like it is working.
I had a freak accident with the bike as during the cold months I was showing it to some family members and during a test ride someone hit an ice patch which caused the bike to swerve, he recovered but complained of the bike riding funny, unfortunately he was not too specific on what he said. Come this spring I took the bike out after the winter nap and had a small problem with starting, it was not responding to the electric starter, hit the kick-start and the bike sounded fine. After about a month the bike started to lose power, buck like a magnet was hitting the bike and robbing the bike of power. I originally thought that a reverse polarization had been going on in some sort of a strange magnetic field. After the bike would no longer start, meaning I had to turn the steering to the right or left to start and then it would stall returning the handlebars straight did I call an expert. It was just the strangest thing.
He said the ignition wire was cut, it happens all the time and he has seen it frequently at the shop up north, he was correct. I just could not believe the ignition wires had been severed but it makes sense as the ignition is the power on for the bike. I think it was from freezing and the sudden jolt. I wound up trying to save the plugs but to no avail, I had to bridge the wires, solder them, wrap in electrical tape and the bike rides fine now, the lights are even brighter.
Hands down the Sachs Madass 125 has filled the void for me in the city, it is small enough that it can fit in the garage door, light enough I can push it up 4 stairs to put in the yard and just the type I was looking for.
I had looked at other scooters but the bars were not tall enough and my knees kept hitting, talking about modifying most techs said it was not worth it and was alot of work.
With the modifications offered the bike will fit the folks that want to drag race on a track, to people speeding on a highway and fit the niche looking for some convenient mpg's.