You are asking about a first scale sport model. The SD is a sport scale in looks, but flies much more like a scale model. It is a great model to develop scale piloting skills, as it is unforgiving of poor piloting. For example, take off requires that the wing be flying before rotation. Some flyers are unfamiliar with that concept. The takeoff roll needs to be much more gradual (like a full scale takeoff) than a typical RC plane to avoid ground looping. It is a relatively heavy model (compared to typical trainers) and requires some anticipation of maneuver response (except snap rolls, which are amazingly quick for that big wing). A quick fix is just to stuff an oversized engine in it and forget about that nonsense of getting the wing flying before take off, etc.

I like the plane, but I recommend it as a "scale trainer" moreso than a second sport plane. Your non computer radoio will be fine. You can set aileron differential very simply by positioning the servo arm so that it gives more up than down movement. Good luck in your choice.