Sorry to hear you are having so many problems. My '08 has, now, 31,000 miles on it and never had an issue of any type; warranty or otherwise. Some friends bought 2010 and are currently on the road (I went to meet up with them and travel along for awhile; his wife and son are bicycling across the US and he's the "base station") and he had an issue with some of the slip joints working loose on his plumbing (traps) and I fixed them with fusible rubber tape. No other issues on his.
So, to answer your question more directly; I've no experience with warranty issues with CruiserRV, but, all of my other communications with them were nothing short of exemplary.
My 2 cents, your mileage may vary...
2 Cats; J-Lo and Ragamuffin :R
2014 Thor Tuscany 40RX DP
2011 Ram 2500 Longhorn CTD HO
2011 Keystone Cougar 318SAB (now gone)
2008 FunFinder X 210WBS (Sadly gone)