I have a Ziroli D-18 and have been flying it for the last three years. It has G-38's for power. The plane flys great and is easy to land. I haven't lost and engine yet so I can't comment on single engine performance. Pay special attention to the rudder linkage while building. Any slop in the bellcranks will cause them not to center properly. The flap on the plans leaves you with an unsupported inner section while transporting the wings. I split the flap at the wing joint.