a 2-3 week head start.

I was about to buy a few of these, but I looked at both the announcement thread and the group buy thread. Price is good, but you have to factor in local shipping, self-assembly, network configuration, and at least 1 person reported hardware issues. Most importantly, it can only be used to mine on one pool, which is not only unhealthy for the overall network, but gives miners less freedom. I ultimately did not get any for these reasons.