Product review (1 stars): Same as others - 18 months later the circuit board is now malfunctioning...
Similar issues as noted by others - after 18 months the range hood has started to automatically start randomly and is impossible to control (e.g., if you put it on a setting it will bounce around on all the settings).  Will try to ask for a new circuit board.  Only additional note is that it does appear when there is more heat, the range hood tends to work a little better (e.g., stops changing settings) but overall I would avoid.