Product review (4 stars): Almost perfect.
The unit is easy to clean and maintain.  The only weakness is the pots and pans tend to slip on the iron support bracket which is very smooth.  It was easy for my (professional) plumbing contractor to install and my gas bill has never been lower.  Very fine product from Italy.  Supplied with a line cord and grounding plug cap.  Requires only a few milliamps of current from the line.