Bad smell in the 1eres uses.
The filler cap is impractical, you never know if it's too loose or too tight (not stubborn)
Kettle unpleasant noise to be in 2nd gear, but ok in the first speed.
Less autonomy than ultrasonic apparatus, however, I have not quantified.
I suspect a technical problem at the start, during the 2nd did not start using it (I have removed and then replaced elements). I'll see to the use ... I read that some have been failures, reliability problem on this camera ??