I have the 40 size one with a OS SF 46 and tower muffler. Cheapo servos all the way around. It only has 4 flights on it but so far I really like it. It just needs to be dialed in to see what it can really do! I would say its probably a best choice if you are looking for a good 3D plane on a budget. It builds fast and flies well on economical 40 sized gear.

However, the primo has peaked my interest.