This system has worked well for me and my Jones Solution. It was quite hard to install exactly to the specs I wanted but after some focus and sweat I had it dialed in to almost the exact specs I wanted. I feel like the Burton channel splitboard system that i've seen videos of is leaps and bounds ahead of this, but i've never used it so can't be certain it works. This allowed me to put a really nice set of bindings on my split instead of being limited to split specific bindings which I felt lacked when it came to new binding construction (uncomfortable straps, bad highback).
I have not had any experience with the parts filling with snow/ice, but i'm not saying that it won't happen. The parts seem like they will fill on one unfortunate icy day. I'll be riding them this season but may consider changing in future. Split board tech is moving fast so it's hard to settle into a system.