I've had some experience with gomax. Sometimes you got to watch the actual size of the engine he's been known to some times say they're a little bigger than they are and sometimes they have some problems. But nothing really out of the ordinary. My biggest problem with go Max is when you contact the guy it's like you're bothering them like if you ask him a question or anything like that he like comes off with like a real attitude and that kind of put me off of them a little bit but the product seems okay