I'm in the market for a portable induction cooktop to be used to deep fry, melt and hold chocolate, fondue, cook & hold on my patio, etc. I see several on Amazon for less than $100.00. Most have 4 star or above reviews . I used one for cooking demonstrations a few years ago. I think it was a Max Burton but I'm not sure. It worked well but broke just after the warranty expired. Can anyone a good brand both for function & reliability/sturdiness? Thanks!