I am very keen to get one of these, having just finished my EBIAB controller upgrade to my rig. I have the water holding at about 0.2 deg C accuracy! But the pizza dish I have doesn't flow nearly enough to work. This is definitely the answer and I tried to contact the maker months ago and again last week but my emails get no reply. I wrote because the shipping calculator on their page originally quoted me $17 then, $67... I can't figure out why and $67 seems a bit much for a flat object, even overseas. Anyway, I hope someone might see this who can suggest how to get in touch.
Great to read everyone's experience!