HavingFun,
I have the Zen 90 with a YS 120FZ with a pipe. Lots of power and the plane flys like it is on rails.
Did only minor mods to it, put the tank on the CG and did not use any of the supplied hardware, Rocket City the way to go. Pull pull on the rudder and Futaba 9202 all around cept throttle, 9001. Would suggest you put trim tape around the canopy because if you don't, it starts to crack.
Other then that, if your into pattern or just starting out, its a good airplane for the price.

TJ