I've tried this more times than I can count. Headset will not play anything in SteamVR. Also, when playing a non Steam game in extended mode, left and right screens are well out of sync, no adjustment to IPD will line the screens up. It doesn't work either, let alone no head tracking.
These headsets are a long way off being ready for normal consumer use. I shouldn't have to be a technician just to get it to work, and it still doesn't work anyway. Shame, as it has such high hopes of being a great headset.