It's nice, but considering what it actually does, the value is actually quite low. You STILL need an additional part, whether it is the stripper clip guide rail mount or a side receiver mount, to put on most types of optics. The change to a pistol gripped, adjustable length of pull and comb height chassis that puts the shooter's shoulder in line with the barrel while adding rails is a welcome change, but it adds a fair bit of weight. A detail strip and clean will require minor re-zero, even if you don't touch the side mount.
That being said, I like mine, and I'll continue using it.