I have a .09 destined for a build I am doing. I bought new, had fun breaking it in. Fun because it gradually picks up performance, and who doesn't love being told to run it wide open to break it in. It has a good sound, and I went so far as to buy a new .15 from HobbyKing, I think it was.
Here's a good vid of a .15 on a delta wing
https://www.youtube.com/watch?v=4Yh523-HNZY

I don't need a lot of power for what I am doing so won't open up the exhaust tube.

For the price, you can't go wrong getting one and trying it out.