I bought the Tower trainer about 3 years ago and like the way it flies. I had an old OS FP .40 in it a first and it was pretty slow taking off. I replaced the engine with a Magnum .46 and it has great power. My major complaint with the Tower trainer is the cheap covering. After the first season, the covering began to peel in a few spots and I was able to temporarily fix it but after the second season, it really began to peel. I'm in the process of recovering my fuse now...pretty annyoying for a beginner but I guess you get what you pay for. If I bought another trainer, I'd look for one with better covering.