I do not have a lot of experience with the sxs but as far as ATVs
I have been running a Can Am for 4 years, before that a Yamaha Big Bear for 12 years, using it for summer trail riding and working around my camp, in winter for ice fishing and plowing snow Machine has been perfect zero issues.
I do keep mine hooked to a battery tender in the winter in the unheated garage. Grease it and change oil once a year. Use 87 Octane gas with Star Tron all year
I ride with another XT same as mine, and an XT Max which is the 2 up, a Yamaha Grizzly and a Honda Rubicon. The only issue is with the Honda in the winter, When its cold the electronic shift does not work some time.
Happy shopping
Cheers
Rick
PS My buddy with the other XT, just read this post, and reminded me of one issue I did have. That was a taillight getting water inside. This was replaced by BRP under warranty