Honda ATVs were good before they started trying to play "catch-up". They seem to be ahead of the game in many ways as long as they stick with what they know well, though it tends to be conservative. Their carbs have long been excellent but for the 'choke' (which can get sticky and cause rich condition when it gets cold). Their foray into FI machines has been problematic from the start, not being designed or proven in cold conditions. In fact, anything less than -10º is getting into questionable territory. A hotter plug is known to help, but the 'program' should have been designed to accommodate it. Perhaps they've changed that in the latest models.
