Thanks for the review Tim! Everything you said was pretty much spot on. I feel it's a great router but the price point is what would hold me back from recommending this to a friend or anyone else. Looking forward to the R7500 :)
The antennas feel delicate. Best be careful not to break them. But that would probably force me to mod the unit and put some standard antennas. Not sure how much of an improvement that would make. Also theres a full teardown of the router in the ddwrt forums.
I have one and it is a beast of router but their are minor quips (none really about performance though) my quips are about the antenna design and router setup. Again if its about performance this one is solid.