I could not be any easier to use and I am completely satisfied.
Note: One morning, after using the device for about two weeks, I was all ready to use the cleaner like I always did before. I turned the power on, and the readout had some stable unintelligible gibberish. It was not the countdown timer message or any of the codes in the booklet supplied. Since I could not even shut it off, I noted that the unit could be rebooted, so I hooked up the charging cable to my USB adapter and plugged i...