I got the hack pack subscription for my son (as the dad...I admit it's for me too a bit lol). We have so far have received the turret and completed it. We did have one minor problem that was tricky to solve, and their support team was super responsive and happy to help and we got it solved easily. I'm stoked to have my 8 year old sone learning what arduino is and does in a format that is accessible to him. My wife has approved the addition of a couple of new arduinos and raspberry pis to my own toybox because she can see the engineer gears turning in the brain of our son. WIN WIN!