Just finished my first mow. Beautiful machine, plenty of power, goes TOO fast. Nice cut, light weight, maneuverable. For $100.00 more than the HU675AWD, it is leaps better in my opinion.
The Smart drive control is as cumbersome and fatigue-causing as any other I've used, but has a wide range of adjustment, so it should suffice. Mower propels very quickly and requires minute adjustments for me at lower speed.
Owners manual states annual service of flywheel brake pad and valve clearance. This service will require me to visit a dealer I suspect, my only concern.
I will probably return this to HD and go and make my final purchase at the 'local' dealer. Same $399 price, so I will see if they will throw in a free gas can so I can start afresh and not contaminate my new carburetor.