Has anyone tried the ?next generation? breathable zippered wader more than just a few times, so as to be able to give a ?first hand? consumer report?

The price tag on this equipment is pretty steep, but if they hold up and perform as advertised I'm interested and would like to hear what you folks, that have used them for a while have to say about the product. Is the functionality of this product truly durable and does it standup as well as the non?zippered breathable waders.

Bob