Product review (2 stars): Buggy, overheats and can't maintain a lower temperature.
This has been our only cooktop for over 2 months now, and while I initially was very pleased with it, the warts have shown.  It has a poor air intake, so it has been "erroring out" on all temperature settings occasionally as it "overheats"... the only solution seems to be letting it (and your food) cool down for a while, keep it away from a wall or anything behind it or to the sides of it, and try again.  So while it's footprint is somewhat large already, having to keep this space clear makes this item enormous for a single burner.  In addition it is pretty much good for large volumes on high heats, that will be done within 2 hours.  DO NOT try to simmer a stock, or soup, or whatever on this for an evening.  It will just keep turning itself off after 2 hours.  As to the "high heats only"... pretty simple, it won't maintain a temperature within it's lowest 4 settings, meaning that you NEED to use a diffuser, set this at a higher temperature, and hope it will stay regular.  Otherwise it cycles off and on, causing scorching during it's 'on' cycle and of course functionally being 'off' on the other portion of these cycles.  Since I bought this to help with canning this summer/fall, both of these cause problems that a propane burner can overcome :/...
The only positive I can really think of is that is does have a lot of power, if you can get it to remain on.  I've been using this in a fairly cold tiny house, and I can't imagine what it's going to be like using this on 90+ degree days, if it will even work.