Summary: I installed this for a customer on an older Lenovo ThinkPad and it worked spledidly. Windows 7 is the best version of Windows available. It can be used to replace Windows 8 when you realize that you don't want it.
Pros: It's not Vista, It's not Windows 8, Not bloated
Cons: Better than other Windows OS's, but it is still Windows
Summary: Took about 2 hrs to wipe HD and install W7 64bit...found all of the drivers on installation except a TV card. Changed to 64bit programs when they were available and when not reinstalled my 32bit programs which run just fine.
Pros: easy install
Cons: no upgrade path from 32bit..had to do fresh new installation
Summary: My first OEM software purchase, working on upgrading some computers for my workplace. Before I even opened it I read the outside of the package that MS requires this software to have an OPK (preinstall kit) and that I have to be some sort of registered service technician. Got me all worried till I read on the NCIX forums that it's all just rubbish and to go ahead and install it anyway.
Summary: I have been using windows 7 for a while and I must say that Microsoft did a great job, all the issues found in Vista were addressed. It has now a clean look, and a lot of customization like themes allowing you to personalize your pc the way you want. There are many useful features like aero snap, hotkeys, multiple screen setup that increases your productivity.
Pros: Big improvement to Vista, aero style, cool transition, clean looking, low system requirement
Cons: not as user friendly as Mac OS X, force close when shutting down