I've had my NAV4e for about three months & I'm loving it. I now have 91 hours, with no issues. Yes, it needs more speed & an improved suspension. I live in Central Michigan.
55 hours on mine and love it too. I'm getting used to the suspension being firm, and think that more speed is the biggest issue at this point. 25 mph would be perfect for me, and I believe the vehicle would safely handle the increase. Still hoping that an aftermarket software mod will come through for this.