It says on the site that it's good for PC monitors, also.  But I tried both and got nearly the same results.  Even tried with a faster computer and it ran slooooow.  Also, there seems to be no simple way to change anything in the front end (vs MAME32, where you have regular Windows-like tabs) - plus, it didn't by default select games with the mouse. I tell ya, I'm interested in trying these other things out....but the only one that works right off is MAME32.