I have sold many Sunsations and was approached by Kachina to sell their product before the owner passed away and the factory was shut down. I can tell you that the Kachina in no way complimented the Sunsation boat line I was already selling. Kachina has very cool graphics but that is about it. Where will you be boating? The Kachina's are a very good lake boat but not intended for rough water at all.
No offense to anyone that currently owns one. This is my opinion.
I would recommend the Sunsation.