I have, over the years, built 3 Senior Kadets. There are few, if any, trainers that are any better. The mention of ailerons vs three control is a point to be considered. The Senior will do simple aerobatics, wingovers, loops and rolls if adequately powered. Because I fly at 5000' ASL, I put .60 engines in all my Seniors. All except the last one were sold to pilots that just had to have a Senior. The last one came within one ft. of missing a tree beside the approach end of our runway. It could have been rebuilt but one of our members wanted the wreckage so he could rebuild it. Come to think of it I just might start another Senior. For just punching holes in the sky and smashing bugs on the leading edges it's the airplane to have. It's easy to build and very easy to fly as well.