I use all my evenings for 2 years, never had any problems when I did absolutely no maintenance on it, not even a cleaning, nothing.
The control is easy to use and the length of cable is satisfactory, the blue LEDs on the tank gives a nice look and flow is really good.
She has an incredible battery life! I never managed to reach the dry down in the evening!
negative points: The tank is not removable, it would be more practical to empty the residual liquid in the late evening
The absence of setting a time interval for launching smoke or flow control.