I have a couple Metabo grinders made in Germany, they're real nice, soft start, variable speed, and run smooth. I forget the size but probably 5 and 6" or there about. I run the smaller one with flap sanding and grinding disc and the larger one with a thin cutoff wheel usually. (same size motor/housing, mainly different guard size)
Recently got a Milwaukee 18v cordless grinder and wasn't sure how good or bad it'd be.. So far it holds it's own, as good or better for power than a corded grinder, and way more handy.
