Product review (4 stars): I use this for homebrewing in the winter. It ...
I use this for homebrewing in the winter.  It works well for batches 3gal and below.  The temperature feature doesn't work well.  I had it set at 200F and had 3 gal of plain water boiling in the pot after an hour0.  I had it set at 200F with 3 gall of wort and it didn't reach temp after an hour.  So, just change to using the full power setting and manually adjusts the power to get the temp.