Wirelessly posted (Mozilla/5.0 (iPhone; CPU iPhone OS 5_0_1 like Mac OS X) AppleWebKit/534.46 (KHTML, like Gecko) Version/5.1 Mobile/9A405 Safari/7534.48.3) At first, I was a Lion lover. I lived all the new features, especially full screen apps and app swiping. But then after using it on my normal workload, it seemed to slow down my productivity. The UI wasn't as responsive. There was considerable lag between click and reaction. It seemed to have terrible memory management. But then I quadrupled my RAM. Everything just works. Perhaps it was just that Lion requires more memory to function well. Now I am a Lion lover.