The i7 is a nice CPU, although I've found that the higher end i5's will do the same job.
Asus Geforce GTX770 2GB: Quite a nice card, worth around $500 though.
16GB DDR3 1600mhz DIMM: What are you using the laptop for? That's more than enough RAM, 8gb would of been fine.
Eh, it's alright, maybe a bit overkill in some areas, but it won't need upgrading in quite a while.