One of the main reasons I ended up buying the M60's was their much more three dimensional soundstage.

The best way to describe the M60 is to say does everything the M22 does, but bigger and better.

I really don't think you have to worry about sending the M60's back if you get them. If you truly do like the M22's but just want a larger/fuller soundstage, the M60's are your speaker.