Just an opinion from being in the IT field for several years and doing sysadmin stuff for Windows machines, I find even Windows 8.1 to be better than Windows 7 as it is. Faster boot, lighter OS...with no real downsides. Windows 10 is pretty much Windows 7 with all of the actual improvements that Windows 8/8.1 brought in. It's more efficient with its hardware, more secure, faster startup/shutdowns and better Windows Update handling. Odds are with the lack of Aero (which was an issue with graphics cards at the time of W7 release) you'll get a few more frames out of your games too. If you use the Windows store to install desktop applications (i.e. NOT the metro ones introduced in Windows 8), you'll be glad to find that they're more than likely not to clutter up your system unnecessarily with random registry keys that are left behind, etc. On a side note, with Windows 10 being the first OS that Microsoft will be offering as a "service", you'll be receiving new features that Microsoft develops as they're released through Windows Update along with all of the security patches. You can opt out of the features for up to several months, but the security/critical updates are mandatory and will install themselves. If you're the family IT guy like I am, you can be relieved to find that you'll no longer have to ask which version of Windows they're on, you'll just be able to assume "Windows 10", and most importantly because this is the first OS which Microsoft has attempted to do a rolling release (meaning everything gets updated on your machine when MS pushes out an update) with, you will always have the most recent build on your machine. I dumped W7 years ago and never looked back. It was a great OS for its time.