Like Tattoo said, "worst trainer" really depends on what you want to get out of the plane/hobby. In my opinion, the worst trainers are these small electric 2 or 3 channel "birds" (firebird, aerobird, fighterbird etc.) They may be fine if you just want a unique toy to fool around with, or if you are looking for a good way to frustrate yourself, but they wont teach you how to fly a radio controlled airplane. If you intend to progress to a 4 channel plane, this is not the way to go. How can you expect to learn to fly with a plane that doesn't even have an elevator (fighterbird)? I see more and more posts about these planes here in the beginner section asking if they are a good "first plane". They are more of a last plane - fun in their own right, but a completely different animal than a 4 channel glow trainer. When you say "first plane", it kind of implies that there will more to follow down the road. If you want something to toss around the backyard or the park, I'm sure these little birds are just the ticket, but if you are looking for a rewarding lifelong hobby, get a real trainer and do it right the first time.