I don't understand how people so strongly believe that alienware is a pile of BS. Personally, I own an Alienware 17 R3 running a 6700HQ, and a GTX 970M. The performance of these parts is amazing, and I LOVE being able to MOVE ABOUT MY HOUSE and ACTUALLY GO PLACES. All that you can complain about is the weight (at seven pounds, this is NO lightwieght). Their support has been amazing, answering all of my questions and I have yet to have a single problem with either Dell (my sister's XPS 13 had an audio problem) OR Alienware's tech support and RMA. To be honest, I could have cheaped out and bought a 15 but wth Yolo. My point here is, Alienware gets so much hate and I really dont know why because you could do WAY worse than to buy an Alienware.
BTW: A small problem is that this is a POWER HUNGRY BEAST, if you want to use it without plugging it in, you need to be on POWER SAVER EVERYTHING.