I've had many indoor grills, but never fully satisfied with any until this one.  I was pleasantly surprised to find that It performs almost as well as an outdoor grill.  The reasons are the high temperature it reaches and more importantly, the cover, which keeps the heat in, similar to an outdoor gas grill.  Love it and use it often in the winter.
Super easy clean-up, too!

Pros: Great value, great performance.
Cons: None