Likewise ... it runs fine. Mine is a 27" 8Gb Ram, 2Tb HDD 3.4 i7 ... bought it refurb a while back.
I'm certainly no pro, so I don't worry about the absolute fastest. Mine handles 1080 video without much fuss really. I run Adobe Premiere, After Effects, Photoshop and Lightroom on it. The AMD card handles the Adobe GPU accelerations available to it, and scrubbing through video is pretty seamless. ( i do use an external firewire drive to store the source files )
rendering out 1080 files is acceptable ... if its basic cutting and editing, then its pretty decent.
The only areas where it slows sometimes is:
the wait on the HDD's to spin up from standby,
the loading of programs for the first time
or swapping between the large programs, both open and working on large files (say Photoshop to premiere).
I had considered changing to SSD, but the reality is that once a program is up and running, then the general usable performance is fine, and that the money would maybe better going towards RAM first.