It's not bad once you get used to it. Metro is pretty but fairly pointless on a PC because the majority of your time will be on the desktop. 8.1 is supposed to alleviate many of the issues people have with 8, but it really isn't as bad as people say. Also, the system is responsive and efficient as hell. It takes my laptop like two seconds to load after I press the power button, but to be fair I have an SSD.
I'd say the best reason to update is for the little features that aren't supported in 7, like DX11.1 (as opposed to DX11).
But again, since the majority of your time is going to be on the desktop, it feels like a pointless upgrade.
There's no reason to get Windows 8 Pro unless you actually need the advanced features that Windows 8 Pro enables compared to Windows 8. --- I think I'm the only person on gamefaqs with a daughterboard - ToastyOne New with a moderation history more plentiful than karma. - Fossil (Moderator)
Yeah, I guess I should've specified that I have 7 and that I was considering going to 8. The only reason I put 'Pro' in the title was because that was for the version the deal was for, so a mistake on my part.