So far I'm very happy with it. I have not see any of the scrolling/lag problems that I saw mentioned in the reviews. It's quite a nice machine. I fear that the 13 inch retina macbook pro has gotten a bit of a bad rap because of the integrated graphics. But I don't think it's a fair rap though because so far it seems quite zippy to me. Anyway, I just wanted to post some positive comments here. A lot of the reviews have been negative about various things on this macbook, but so far I really love it. The 15 inch was just too big for my needs, but 13 inches is just right.