Mine is a 2005 model, which I bought second hand in 2007.
I have no quality issues with mine at all. ( yes it does tend to porpoise a little at 30mph ) but I don't get up to that speed very often due to lumpy water.
I have spoken to Warrior a few times, once for a switch panel. The other times for advice. In every case, they have been fantastic.
I am surprised to hear that you are having problems. ? ? ? ?
Jim