The exhaust on this over-the-range hood is quite powerful on the HI setting, and extremely quiet on the LO.  The digital keypad is a nice feature but it takes a bit of getting used to the slight delay (about 1.5 seconds) for the setting to change.  One disappointment is the LED lighting.  Two pucks at either end of the front of the hood concentrate the work light at either end and front of the cooktop surface, leaving the middle and back of the cooktop barely lit - not something I expected from a high-end fairly expensive product.