It seems like these are finally honing in on the specific space they want to occupy (And not poising to replace standard SPD's) and the more the mfr can better convey this, the more the public will realize and accept it. As an in-between where you can get a little more retention for those rougher instances where you get a bit of pedal bobble underfoot and then rapid realignment and reconnection but still offering the flat-style freedom of movement is where they seem to be best suited. Bumpy trails a little to rowdy for your suspension, foot dabs and quickly back up but not for all out XC efficiency or the like seem like thier space. And the other critical factor is pairing with the right shoe--the best pairings are a flat style clipless with flat sticky rubber to engage the pins for stability. Combing the grip of good rubber to pins for stability plus the rapid realignment means quick on an off of pedals for that style of riding. Using your hard sole XC shoes or hike-a-bike lugged sole enduro SPD's are not going to give the needed grip. The downside of these is the cost--$200-400 for a set of pedals and the right shoes (mandatory) for a touch more grip is a tough proposition.