3 of 3 people found the following review helpful
I don't normally bother with reviews, but have just upgraded my 2009 Macbook Pro 13" from 4-8gb and then plucked up the courage to install OSX Lion. No problems at all with Lion (I had read the bad reviews) and I am liking the new features.
As a heavy Aperture 3 user I was also frustrated with performance, especially using brushes adjustments. Not any more.
Installed in 10 minutes, no problems. Highly recommended and great value, or you could go to Apple and pay £320!