Well worth the money. I've built several Malossi 210 motors but this kit blows the stock one away as it's refined to the max, just make sure you use a 60mm crank along with a 1mm base gasket as it's all reworked for a stroker crank = 221cc. My setup includes a Worb5 reworked 60mm crank, Parmakit electronic ignition (also awesome !), 30mm delorto PHBH carb, MMW reed block with RD350 reeds, banded clutch with Malossi springs, T5 4th gear and JL RH exhaust. (LH exhaust was a bit better on low end grunt, so I may go back to that.)
It's always a 1 or 2 kick starter and hauls ass. Haven't dyno'd it yet but guess it to be putting out around 30 hp !