I did dish out a lot to gift myself with these, and I logged about 10 hours on them so far. During my first day out, I realized that the company-spec adjustments for the straps were too big so I had to adjust it for my second day, and once I got it all perfect, they were PERFECT. When I first looked at them out of the box, they were screaming quality. These bindings are made well. They are light too. The buckles/ratchets feel awesome when being used, and the bindings overall are very comfortable. The only downside is that the toe capping straps don't really cap your toes...I don't know what their reasoning behind the design is, but I just use it as a standard strap over the foot and it works just fine.
To my dismay two months ago, a thumb screw fell off on my ankle strap on one of my bindings. I found a replacement screw (a standard flat-head screw) to fix the issue. I emailed Union's warranty people, and they quickly replied back saying "we'll mail you a new thumb screw".
A few days later, they USPS priority mailed me 2 thumb screws, and stickers! Talk about customer service.