I am planing on buying a gaming laptop, will be mostly using it for playing wow and for university.My budget is about $2000. I can't decide what to get; however, I found Alienware 17 with the following spec:

Operating System Windows® 7 Ultimate 64-bit, English

Memory 16GB Dual Channel DDR3L at 1600MHz
Video Card NVIDIA® GeForce® GTX 770M with 3GB GDDR5
Hard Drive 750GB SATA 6Gb/s (7,200 RPM)
Wireless Broadcom 4352 802.11 ac 2x2 and Bluetooth 4.0
Processor 4th Generation Intel® Core™ i7-4700MQ processor (6MB Cache, up to 3.4GHz)
17.3" WLED FHD (1920 x 1080) Anti-Glare Display


What do you guys think?
I am just worried about "Broadcom 4352 802.11 ac 2x2 and Bluetooth 4.0", I heard very bad things about it performance. Is it true?