Well I can handle myself pretty well in a normal IL2, however I'll say the turret of the IL2M is a nice emergency procedure for when your being double teamed by a couple of 109's.
It doesn't really matter though, I'm not forking over $10 for one plane (as much as I'd love to rain bombs 1000lb bombs on unsuspecting planes in CTA).

But uh let's not start another thread about overpriced DLC.