After just 2 days on the slopes, the toe strap on the back binding broke. Jones team sent me a replacement. Unfortunately, after 5 more days, it broke again. I don't do anything crazy with the bindings - a bit of carving. But when I am on the front edge, the strap always hits the slope (due to its design).
Fast entry system is something you need to get used to (I cannot get used to it, I actually spend more time on "fast" strapping, rather than spending time with my previous "old-fashioned" bindings)
However, once you are in the bindings, performance and responsiveness are pretty good