I picked up one of the Alpha .21 5 port ABI engines today. Gunna wait till my Orion MTE quits on me before i really start running it though. Apparently it has ceramic bearings and all that jazz. Overall its typical looking orion quality and if it runs like my crf's do (not expecting the power, but the reliability, longevity, and easy tuning) it should be a winner at right around $200.