I bought one last year as a gift for a flying buddy. He installed a Saito 120 with a 3 blade prop. Robart retracts. This plane flies great, plenty of power with the 120. He is able to do all aerobatic manuevers with it. The flaps are very effective and no elevator mixing was needed. With the flaps deployed the plane comes in slow and just settles in. This plane is big and flies incredibly stable. He was happy with the quality of the kit and how well it was engineered, as usual with Top Flite. You'll love it.