The extra memory just came for my new Mac Min i, and I can definitely say that it speeded things up. When I posted earlier about being disappointed. that was with 2 gb stock memory. I put in a total of 4 gb today. Turns out, now get this, if I had ordered the mini with 4 gb to start, it would only have cost $100 more from Apple. Getting it from OWC cost $120.00. Apple would have been cheaper on memory! Go figure. Anyway, 4 gb seems to be the sweet spot for general use like for me.