Works in tandem with my Air in the studio. I use it for rough edits, than transfer and backup to the Air (because it's fast.) then bring everything over to my iMac for the rendering and fancy stuff.
I am a freelance software developer (mostly for the web & windows platform) and I was in the market for a new powerful laptop. I was also interested in iOS development after i got a iPhone 4 as a gift from one of my clients. So I opted for the stock 17" MBP (early 2011).
This is my first mac and I mostly run Windows on it due to professional needs but when I occasionally need to use xcode I just reboot and voila! The best of both worlds.
And did I mention that I love gaming? My 17" MBP with a 6750M fulfills that role very well. But I am afraid that capability is short lived. MBPs have long lifes in general (I expect 4 years) but newer games will very soon overwhelm the 6750M. I will be left with a 'work only' machine but I guess that is true for most laptops. For now I am ravaging thru MW3 (competed in two sessions!!), Skyrim, Deus Ex HR, LA Noire and Rage.
The one thing that I really really really dislike is the lack of full support in Bootcamp(Win7) like multi touch gestures, graphic card switching etc, which is understandable, but as a 'user' I WANT EVERYTHING and then some!
