I got the Ninja Sizzled Smokeless Indoor Grill and Griddle and I love it!  First, I have to say that it is not smokeless.  However, the smoke is minimal.  I made grilled chicken breast and grilled vegetables on the grill insert and it worked so well.  You can set the temperature to the appropriate setting and it cooks evenly and thoroughly.  It does have a satisfyingly sizzle, and the food tasted wonderful.  The fat drips into a built in compartment and the whole thing is so easy to clean.  Overall, this is a great product.  I absolutely love it, and will continue to use it for grilling.