If you are having trouble with the AA turning all by itsself, be sure to adjust the trim knob on the transmitter before trying anything else. And be aware that the trim dial can be a little fidgety. For instance, on mine, if I turn the dial all the way to the right, the plane oddly turns left. Back it off a little and the plane turns right, just as it should. And sometimes I can get it trimmed out perfectly and sometimes it just seems less stable and tends to turn a bit. I think the weather has an effect as well as everything else. And maybe the motors' relative output can vary a bit from flight to flight, possibly due to temperature or whatever. If the trim dial does not solve the problem, remember that there is a trim tab on the vertical tail surface. You cut it lose with scissors and bend it right or left and hold it in place with one of the little aluminum stickers that work like hinges. And of course any gusting or turbulence will turn the plane.

As for range problems, remember that if you are holding the transmitter antenna pointing toward the plane, which is a very natural thing to do, this is the worst orientation for that antenna. The best situation is to have the transmitter antenna pointing up (or 90 degrees from the airplane). The radio signal radiates out from the side of the antenna rather than out the tip. I find that I get plenty of range if I keep this in mind - enough so that my ability to see the orientation of the plane is the limiting factor. The plane will also receive better with it's side toward you, but you can't really do all your flying that way.

And as for delay, yes that is a characteristic of this plane to some extent. I have flow an A channel and a couple of B channel planes and I find the delay noticeably worse on the A channel. Fortunately, the turning response is better than the throttle response and it is still pretty flyable if you keep that in mind by throttling up early. But in a $30 kit, you have to accept a little delayed response, unfortunately.