Review: - It took a while to run on my old Macbook. 30 minutes or so. - Mac still seems to boot up slow. I don't really notice the performance improvement. - "System Data" still takes up an insane amount of my disk space.

But hey, maybe my apps will be snappier?

If my 10 year old macbook doesn't see much improvement, I don't think a newer machine will see it either.