In my experience, it’s been reliable, accurate and fun to use. The optic shown is 3x Vortex Spitefire, quite reasonable with this cartridge for ranges up to 250 yards. 22mag ammo ranges in bullet weight from 30 to 50 grains. The most common 40 grain bullets have the same velocity at 100 yards as 22LR has at the muzzle, and stay supersonic out to 175 yards.
About 60 CMR30s have gone out for field testing. Kel-Tec plans on shipping 500 to 1000 to consumers before the end of 2014.