I don't think you've been let down by CruiserRV so much as by your dealer. All manufacturers have issues with QC on their units. They don't have the time or the staff to test everything before the trailer leaves the factory. What is supposed to happen and what dealers are paid for is that they are supposed to test and repair each and every unit they sell before the buyer ever sees it.
Part of the blame also, sorry to say this, resides with you. You should never take possession of an RV without a PDI; that is the process where the dealer walks you through and demonstrates each and every function of the RV...does the pump work, does the converter provide electricity, will the power cable power the converter, does the toilet flush, etc. Like "kicking the tires" on a new car, the owner should test the unit's fitments before driving off the lot. You would have found virtually all of those shortcomings with an adequate PDI.
Maybe you weren't aware of the PDI process and the dealer tried "saving a few bucks" by not doing it (a lot of "less than fair" dealers will skimp on the PDI despite having already been paid to do it). At any rate, CruiserRV, in my experience, makes as good an RV as any. Certainly not the "best", but, even the "best" have issues and mistakes roll out of their factories just as frequently. The advantage to many of the "best" is that they have a limited dealer network and those dealers are usually "a cut above" the others; they do their job and catch the mistakes before the consumer finds them, which is what all dealers are supposed to do.
Your only real recourse now is to get / make the dealer do his job to make the trailer right for you. You can get CruiserRV involved, but, they don't run the repair facility and there really is very little that they can do. People seem to think the manufacturer can work miracles, but, as opposed to auto dealers that do have a "connection" to the manufacturer, RV dealers really have no connection back to the dealer...CruiserRV can't really make the dealer do anything. If you can't get any satisfaction from the dealer, you may have to find another dealer to make the repairs.
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)