The S15 seems to work as advertised, however there doesn't seem to be a way to SSH into it. The dropbear daemon is there but it is set to not allow connections. Does the T15 allow for SSH?
After it got up to speed it was using 18V, but was using 20V until it started.
The S15 also seems to use cgminer and not bmminer as previous miners use.
Good job getting your hands on it a little early that way.
Can you post a screenshot of the miner status, and maybe a pic or 2 of the miner? It would be nice to see it in action and confirm they have something close to spec hitting the market.
The S15 images look identical to Swisher828's T15 images.