Product review (1 stars): Amazingly Poor Design and Reliability
Where to start?  The exhaust fan is pretty much worthless.  For one, it doesn't do a very good job of sucking smoke down.  Moreover, when on high especially, it sucks a good portion of the heat from the burners.  To give you an idea of how much heat it pulls away from your pans, you can't boil water with it on.  To boot, when the grill side is on, the fan automatically turns on in hi mode.  This makes anything but direct heat grilling impossible and forget about cooking on the other side.

Beyond the very poor design, the ignition system is faulty.  The back burner no longer lights at all after about 18 months of use.  The front is intermittent and probably will go out in short order.

In summary, this is an overpriced and poorly designed product.