I've had mine just over 2yrs, guessing ~40 tanks of fuel through it. Using with 24 or 32" bar.
I plugged decomp, used oem wrist pin bearing, oem elastostart, Stens air filter, and used a Raisman cylinder in place of the farmertech.
Problems I've had so far was the oil pump didn't pump worth a crap so replaced it. Flywheel side case had a porous spot that allowed bar oil to seep through, had to jb-weld that been fine since. Tore an av mount off when the saw got pinched once, probably my fault but I wasn't pulling crazy hard either. Intake boot hose clamp worked itself loose and caused it to go lean-luckily I caught it quick enough-blue loctited the clamp been fine since.