Review on BESTINNKITS Smart Coffee Set - Automatic Gravity-Induction Mug for Office Desk Use with Candle Wax Cup Warmer Heating Plate (Up to 131F/55C) - 2 Piece Set by Lisa Green

This heated mug and coaster work very well. I bought this after buying another which was just a base and didn't keep my coffee hot. Perhaps this variant works because it comes with its own cup so it goes well with the base. I'm not sure how well this will work with other cups, but flat-bottomed cups will probably be fine. It's also quite an edgy look. I gave 3 stars for the "presentation" (and 4 stars overall) only because of the garbled English on the box and liner and because the mug is small (maybe 10 ounces?). But overall I am very satisfied and can recommend it! UPDATE: I've tried this with other mugs. As long as the cup has a relatively flat bottom, it works fine. So far after a few months very satisfied with this product.