The Devil's in the details, Chris. I bought a mid-2012 MacBook Pro (MBP) so I could upgrade the memory and replace the HDD with an SSD. I installed Windows 8 (now 8.1) using Bootcamp. Both OS's work fine. BUT... when I'm using Windows -- even to simply read email in Firefox -- the top surface of the MBP gets uncomfortably warm. My palms and forearms rest naturally on this surface when typing, and it's like they're laying across a heating pad set to medium. I've configured Power Mode to "Balanced (recommended)", where the CPU is supposed to vary from 5% to 100% depending on demand. I have yet to run a demanding Windows program on this thing but I bet it'll really heat up then!
Another item of note is that the top surface near the power and LAN jacks gets HOT. That's not a source of discomfort but it is another indicator that the MBP and/or Bootcamp does not make an ideal Windows laptop. I suspect an OSX feature that's missing in Bootcamp is the ability for the MBP to switch between the Intel and Nvidia GPUs (just a guess based on the heat and the fact that only the Nvidia GPU is listed in Device Mgr).
Lastly, a minor gripe: when a new version of Bootcamp comes out there's no documentation available on upgrading one's Bootcamp partition with newer drivers. Every attempt I've made at getting Apple Support for Bootcamp-related questions has met the same roadblock: "we don't support Windows", which I interpret to mean "We don't support Bootcamp". So be prepared to be receive no Bootcamp-related support from the start.