I looked at them after seeing James' videos on fitrv.com
He seems like the type to thoroughly research and find quality stuff.
Zamp looks like good stuff to me, but expensive. the only thing I didn't really like is it looks like they have a proprietary connector system, rather than using the type of connector it seems the rest of the solar industry uses.
I went with renogy due to price .....still trying to work my way through my honey-do list to get back on that install project.
__________________
|