I've got all 3, Twin-Air 45, Cedar Hobbies Twin Stick and TwinStar.

Twin-Air 45: Easy to build, some carving. Flies like a pattern plane, very stable and groovy. I used 2 Magnum .52XLS engines and it was fast. Handles an engine out well.

Twin Stick: Not the best ARF in the world, but good for the price. Be sure to re-glue the nacelles. Comes out very nose heavy so I moved all the servos to the rear and put the battery in a compartment in the back. Flies like a Stick. Has big controls. Will snap and flat spin. I used 8 degrees of out thrust and I could do acro on one engine (OS .46AX) without rudder.

TwinStar: Good for a few flights. Small controls. Does not like full power on 1 engine. Sirriest covering job from the standpoint of longevity. First the red will come off no matter how mant times you have ironed it down before. Then the black, then the whole covering. My wings started to peel so I redid the outer panels with Ultracote. The nacelles are peeling now. I have it on floats and as soon as it gets really water logged, I am trashing it. I am tired of messing with a sorry covering on a marginal flying plane. If you can do acro on a Stick, you'll out grow the TwinStar in a few flights as soon as the newness of flying a twin goes away. The controls are made for a trainer, I mean a trainer-small. The tanks are small, just over 3 ounces, as I recall. So don't be thinking about a bigger engine.

The best quality in the bunch it the Twin-Air 45 if you don't mind building. Also if you like smooth, pattern like flying.

The Twin Stick is for screwing around, but it takes some fixing or the engines will shake loose.

If you can fly, forget the TwinStar, in my opinion.