I've been using Windows 8 at home since day 1 (call me crazy), and I haven't had any real problems or issues on my non-touch PC, but I hardly ever use the start menu.
My favorite app on Windows 8 (and windows 7, and linux, and XP, and every system I use now) is Launchy (www.launchy.net). Press Alt+Space and start typing the name of the program that you want to run, and it finds it for you. Press enter, and it launches. It's a freeware/donationware, and I've ponied up a couple of donations. The default skin is not my favorite, so I always install the Transport skin (http://artblanc.deviantart.com/art/Transport-for-Launchy-257867710).