I've used four of their kits so far. They all turned out pretty good. I added the yeast and stirred in after about 15 minutes of soaking with the first three ,and with the fourth, I added the yeast to a pint of the wort while the main batch was cooling, then pitched it 30 minutes or so later when the wort was at about 80 degrees. Cool how it just comes alive, isn't it?