RE: What trainer to get ?
That dumb***** in the video only had about 4-6 rubber bands on that thing. He should have been flying with at least 12.
The way the instructions tell you to join the wing with 1/2" clear tape and no glue is questionable. Some people do it and have no problems (with enough rubber bands). I epoxied mine together and it has survived a lot worse than what the dope in the video was doing.
He was also flying in a housing development. What a moron.
I still say the Tower is a better deal, but don't let this video convince you that the Alpha wing is weak. It's not.
Good luck