I am new to Macs, been a Windows user all my life. I did tech support so I was pretty familiar with the ini files, the registry, skipped Vista, and thoroughly enjoyed Windows 7. For reasons that belong on another post, I took the plunge and bought a MacBook Air that came with Lion. I don't have any exposure to Snow Leopard or any other Mac feline, I had no Mac applications to migrate, no system to upgrade. I just had a brand new Mac with Lion. I gotta tell you, this OS is AMAZING! Everything from gestures, to the Launchpad (very familiar as an avid iPad user), Mission Control and spaces, the dock, everything is just amazing and fantastic. Thought I'd share since I have read so much negative stuff about Lion. Yes, I realize this is a forum where people come to ask for help, and thus a bit biased, but from a noob perspective Apple got this one right. I don't have any lockups, any weirdness, any lag, any nothing. It just works. For me. Obviously, YMMV. FYI I run Windows 7 in Bootcamp, also run Parallels 7, run Microsoft Office (Mac and Windows versions), and a number of other basic apps (on Mac I run Pixelmator, Chrome, eWallet, Civ 4, Jedi Knight 2, and a ton of little apps and utilities, and on Windows I run Quicken, DVD Profiler, Escort Radar Updater). I don't do rocket science or statistical equations, although I do run a Windows 98 VM and a DOS VM so I can play Zork once in a while. So I guess I lucked out jumping on the Mac bandwagon with Lion and not having anything to migrate.