I looked up the horse's video on youtube. It looks like he's from a sales barn, Carvins Cove Stables, they had other horses listed. Carvins Cove Stables
The horse Denver looked a bit off too (NQR). I haven't had good experiences with sales barns, so my advice would have the horse checked carefully. OTOH, sales barns go through a lot of horses and there's always the chance of finding a gem.
If I ever look for another gaited horse I'm looking outside California. Those horses were cheaper and much better quality than anything I've ever seen here.