Product review (5 stars): Awesome!
I love, love, love this cooktop.  Five burners are great!  Cleaning is easy!  Cooks awesomely!  I hated my previous one. It had four burners...only one of which would boil water.  It was black glass which was awful to clean.  I feel like I won the lottery or something with this one ;-)
8/9/2016 - Still love this cooktop!  Stainless is still easy to clean.  Cast iron grates are heavy duty.  No problems at all.  I would definitely buy this again.