THIS IS THE BEST FLAT IRON OUT THERE.  I HAVE HAD MY FOR 4 YEARS NOW,  STILL WORKS AS GOOD AS THE FIRST DAY I BOUGHT IT.  IT WORKS GREAT WITH OR WITHOUT PRODUCT.   GLIDES RIGHT THROUGH THE HAIR AND LEAVES IT SILKY STRAIGHT.  DON'T WASTE YOUR MONEY ON A CHEAP FLAT IRON,  THIS IRON IS WORTH EVERY PENNY.  I GIVE THIS FLAT IRON 5 STARS