I feel like I have something to say about everything and I hope not to come across as a know-it-all, yet with 5 older kids between 12 and 20 we have done quite a bit and this is one thing we have done and it is great! My kids have built robots that really move and they really enjoyed the class as well. It would probably need to be a set age as described as it can get so intense that the parent is doing all the work, (yet they would have fun too!).
Put us on the list for when this happens.