It's unlikely that it would be damaged from shipping, as the others have said; very well packaged. It would have to have been abused to get damaged in this way.
I've had a few AxeFx's so I have had to return one once for an SPDIF port that wasn't working, if I recall. I got it back within the week, which is pretty excellent considering it was shipped both ways, all the way across the US, in addition to the repair time.
They've shipped me a fan (to replace a noisy unit) and a screen (would fade occasionally after heating up), both on their nickel. I received both of these repair parts within a couple of days of asking.
I gig regularly, and consider this to be a roadworthy piece of gear, and the service was awesome, when I needed a little help. I wouldn't be concerned about shipping damage.