I've had two. The first was an animal at wide open throttle but idle and transition were only so-so. I liked it though. The second was a nightmare. It never did run well. I know how to tune an engine too but I was beginning to question that with this thing.. I likely could have gotten to the bottom of it but I just gave the thing away rather than spend the time.

So if you get a good one, you'll love it. If not, you'll likely hate it. I think it is one of those things you have to try and decide for yourself.