We had a Jennaire cooktop with those cast iron burners and found it to be difficult to deal with as it 1) never turned red when on hot, 2) was very slow to cool down. We now have a Maytag glass cooktop and I find it to be pretty easy to regulate, although nothing beats gas for microadjustment. I sometimes take the pan almost off the cooktop to regulate it a bit and have found it to be pretty decent to deal with.