I went from a real A5 to the Maxis and am very happy. As far as the gas gun needing more cleaning, I shoot mine all season on ducks, pheasants, chukars, and clays, and aside from punching out the bore only clean it every two or three years and have never had a glitch.
It just keeps running and is a pleasure to shoot.
I've only had one gas gun that needed more than periodic maintenance and it was Rem. 878, it hated Federal shells.