So far the results are very good on the few seeds I have started in the stuff from Auto Zone. I planted some spinach on the 16th and had one pop up on the 18th and most are now up. That is far faster than I have ever had spinach sprout. My biggest worry with the spinach will be when it comes time to transplant them. I just don't know if few roots of spinach seedlings will cling well when trying to set them out. I will be starting some more fall seeds this week. I love working with the stuff. It soaks up water from the bottom much faster than any other medium I have ever used and the way it turns white when dry is an easy signal that they may need a bit of water. One thing I did learn is you want to do any leveling before you get the stuff wet. It is very easy to smooth out flat when dry but not when wet. I have really high hopes for this, so thanks again for posting the tip.
Bill