Sorry, just ripping on something for fun. Stole this from another site.
In all seriousness. I like the idea of smoother HGs. But then I've always been a fan of PRI's on my stuff. I liked the Apex HG's too. Keymods a good attempt to get a universal attachment method, but some of the other proprietary systems have been pretty good too. I guess its still one of those wait and see things.