I built this rig last spring for my daughter as a basic gaming machine and it is working great.
This was the 1st generation of AMD APUs so I wanted to experiment with the dual graphics / crossfire with the highest available card the HD 6670. Overall the graphics work fine for Arkaham City, Portal 2, and GW2 though these are not too hard on the GPU.
In hindsight I would have gone for a Core i3 with a discreet GPU as there is not any great boost with the dual graphics.
Love the Fractal Core 3000 Case for smooth solid design and ease to work with. Kingston Memory is awesome and looks great.
Not a great fan of the Gigabyte board (Bios and Utilities are a bit of a struggle for example) but it works fine.
The hard drive is an old one from another build so nothing special there.
Got the OCZ CPU cooler and Power Supply B-Stock but they both work great and add to the aesthetics of the rig (shiny!). Other than that I added an LED strip from Ebay and rigged it to power off a 12v molex. Looks sweet under the monitor and has a remote to change color, dim, etc.
Edit: Benchmarks before and after the addition of the discrete HD 6670:
APU Only Baseline: Heaven Ave FPS: 9 Heaven Score: 227 3DMark P: 1025
APU Dual Graphics with HD 6670 CPU OC 3.375: Heaven Ave FPS: 34.8 Heaven Score: 876 3DMark P: 2041
Note: Updated to latest catalyst drivers May 2013 and performance shot up 57%. I think the drivers for the chipset favored the APU over 6670 but now works (just my theory).