Product review (5 stars): Love it!
I really like this cooktop. The 5 burners are awesome. Excellent heavy duty grates. The price is unbelievable.  When installing, my general contractor thought that it didn't come with a regulator,  for the natural gas, because he couldn't see it on the outside of the unit.  I  emailed Windmax and they replied almost immediately. The regulator is inside the unit.
I am recommending this unit to all my friends.