Considering your budget, you got a hell lot of options. Your chosen option is also very good. Here's some more:
1. MSI GS60 Ghost Pro -
https/www.amazon.com/XOTIC-Skylake-i7-6700HQ-1x512GB-Computer/dp/B015QHZL8M?ie=UTF8&tag=egclaptops-20
Key features: Core i7-6700HQ , 16GB RAM + 500GB SSD + 1TB 2.5" SSD, GTX970M 6GB , 4K screen, light(~4 lbs)
Downside: 15.6"
2. ASUS ROG G752VY-DH72 -
https/www.amazon.com/G752VY-DH72-17-Inch-Gaming-Laptop-Georce/dp/B01578ZM6Q?ie=UTF8&tag=egclaptops-20
Key features: Core i7 6700HQ, 32 GB DDR4-SDRAM, NVIDIA GTX980M 4GB, 1TB+256 NVMe SSD,
Downside: heavy(9.5 lbs)
3. Aorus X7 Pro-Sync -
http/www.newegg.com/Product/Product.aspx?Item=N82E16834725013&nm_mc=AFC-C8Junction&cm_mmc=AFC-C8Junction-VigLink2-_-na-_-na-_-na&cm_sp=&AID=10446076&PID=3821802&SID=iq6l4esc0p00xwr200053
Key features: Core i7-4870HQ, RAM 16GB(upgradable to 32GB), Dual Nvidia GeForce GTX 970M SLI
Downside: extremely low 128 GB SSD, windows 8.1(according to me)
Both MSI and ASUS are reliable, just depends on the model. If you want some more options, just tell me, I'll post some more links here itself.