I have two of these units now. The first one I purchased used and used a couple of years; I just LOVED IT!!! I used it as my main burner on the range top so its had a lot of use. Controls are simple enough for those who are not digitally minded and I love that they shut off if the food boils dry and someone has forgotten. I love that its so fast and behaves like gas in that heat reduction is almost immediate.
Its a bit irritating most of my very good quality cookware won't work on these units as they work with magnets. I can use my cast iron though and a couple other pots.
About 6 months ago I saw new units at a good price so I bought one as they had updated features and I figured the older one had been through two owners it might not last much longer and I didn't want to be left without one!
One of the new features is a heavier cord as well as improved error codes so the unit shuts off before it overheats causing internal components damage. It is FOREVER shutting off in the middle of cooking everything from eggs to meat to water I was boiling the other night for rice. One is left with a half cooked meal and having to crank up the range burners - should you be so lucky as to have a one! Or waiting until it cools enough to resume cooking! This mornings half cooked eggs were the last straw, I've bundled it up to get rid of and am using the older one again. Perhaps I'll get a propane stove top rather than a gas 'wannabe'.