Coming from someone who bought a razer blade 14 with pretty much the same mindset as you, avoid it if you can.
People aren't exaggerating when they say it overheats, hard. Even when doing light-medium light productivity stuff you can feel it more than warm in it's hotspots, and while playing dota 2 in my case it would get super hot to the touch right below the screen, and on some spots in the keyboard (fortunately the WASD area was much cooler), I can't even imagine the heat while playing AAA games.
If you are going to have a PC at home, please ask yourself this: do you REALLY need to have THAT much power on a portable device?, if the answer is yes, please ask yourself the same question again. Chances are, playing on the laptop is going to be very uncomfortable because of the keyboard and the trackpad sometimes being touched by your palms, plus it will throttle after a while. Are you really going to game outside your home? Only you know the answer to that, but from personal experience that's just not the case pretty much ever.
The conclusion being that if you have a PC at home, just buy an ultrabook or whatever to carry around with you that's even more portable than the razer blade (because really, I have one and it's not even THAT portable, you can definitely feel 4+ pounds in your backpack), and not have to limit yourself to the duopoly of the 14 inch razer blade + gs40 that is currently running the market. The dell xps 15 is much better in my opinion, or maybe an asus zenbook with a 940m which is just FINE for games such as overwatch and dota.