I got one of these indoor/outdoor grills for Valentines day. This one only cooks one side at a time, and you have to flip to get grill marks on both sides. I've only used it inside, and I put the lid on, set it on the counter near the stove with the vent hood fan on. I haven't had a problem with smoking up the house. Sausage did seem to smoke a little more than steaks and burgers, just have to learn what setting to put it on. It cooks a 3/4 inch steak in about 20 minutes.