Hey RG. Have had the same problem with the zipper, and also with the booties being too small so I had to cut them off. Been meaning to contact them as well. Need to send the suit in... barely a year of use out of it. Other than the zipper failing in less than a season, the booties not fitting properly to the size of the suit, and the zipper being located on the back so that you can't get in and out of the suit by yourself, this thing would be alright. The gaskets were nice with good material. The wrist velcro strap could have been more pro. I won the thing so can't complain too much (one of the coolest prizes ever), but if I paid full retail I would be irate. Still want to get the zipper fixed though for friends and family on raft trips.
Our family now has all Kokatat's, and stoked. I completely abused one suit over two seasons, so sent it in to get it patched and fixed. They called me and were like, "Yeah, this thing has some delaminating and wear that shouldn't happen so we are going to send you a new suit." Now that is customer service. Sold on the quality of the suit as well.