I really love the George Forman Immersa Grill. i have the "small" version but to be honest its plenty big enough for a family of 4.  
Really quick pre heat so no waiting around and the drip tray catches all the nasty fats that are removed by this way of cooking. 
VERY very easy clean by removing the control panel and then straight into the dishwasher or hand wash. best of all you can now store upright so less storage used. 

I am really happy!