We bought our 2005 3704QS in 2008. It had just under 10,000 miles at the time. We know are at 60,000 miles and have been to 42 States. We are off to Alaska this summer. We are very happy with the Tsunami although, like any motor home, it has provided its share of challenges. Rebuilding the acqua hot, tracing electrical issues, improper winterization by poorly trained service personnel and the chassis A/C have all popped up over the past 8 years. But none have been show stoppers and based on my experiences I would not trade ours for anything but another Taunami.