Yes, I've got one. I think it's great. I've got the standard Amazon, rather than the new cross specific version, and I've set it up with Ultegra compact gears and Avid BB7 disc brakes on a Winwood fork.
I think if I had to keep only one bike it would probably be the Amazon. It's so versatile. Put a rack on it for light touring, mudguards for winter road rides, chunky tyres for cross, or skinny slicks for a fast club run.
The only downsides - it's a bit heavy, especially with the discs and hefty forks. Mine, in tonight's config. with mudguards, road tyres, and lights, is 23.5 lbs. Also, I had trouble fitting a 160mm disc at the back and had to change down to 140mm. Works fine now though, and only a minor niggle.
Can't remember quite what I paid. I got the frame and fork at Fat Birds, and they were great as always, but I think I remember the price wasn't quite as far below list price as I'd hoped it might be. Still, can't complain, it's turned out to be a great value bike.
PZ.