From a protection and comfort standpoint, this is a great back protector. It’s not too stiff and it breaths really well. It also feels like it could take a huge hit and be just fine. It’s not too heavy.
I installed this in my AStars suit using the snap system. I think this system is great in theory, but poor in execution. The waist strap is excellent, but it is very difficult to reach deep enough into the suit and behind you to grab it. The snap system is a great concept, but trying to wrestle your way into the suit without it coming unsnapped is next to impossible. It takes a second person to reach down behind your neck and resnap it once you’ve got your suit on. I will be moving to a back protector that has a top strap instead.
In the meantime, it is still functional for me. I’ve learned to just put on the back protector using only the waist strap and then put on my suit. It stays in place pretty well without the top being snapped.