@kuan.........I've used Mycryo in a pinch and it works OK, but honestly it doesn't really save that much time or hassle. Also, some years ago I bought one of those Chocovision "Revolation" tempering machines when I was but a noob. That didn't save much time either, and it only tempers 1 lb max at a time, and 1 lb of chocolate is basically nothing. Tempering really isn't that difficult once you're used to doing it. Holding temper and keeping the chocolate workable for longer periods of time is the tricky part. I make a "nest" out of an insulated cooler blanket and a heating pad and I stick my stainless steel bowl in it and it works pretty darn well.