After a month, we love it! We purchased the 6.8 Xterra. The only difference from the 6.6 and the 6.8 that we can see is the software and warranty. It was worth the $299 difference to buy the 6.8…… Value! As noted by others, set up out of the box took less than an hour. The instructions were clearly written and this is one heavy duty mother! I mean heavy!!! Get a friend to help with this one. Buy the complete set up and delivery for your backs sake.