Grill Grates have won many steak comps, however not just because they impart nice grill marks. When using GG you reduce the flair ups that comes with high heat and fat on the grill making a steak look and taste wonderful. The best advantage of using GGs is when cooking a steak the juices drip down into the valleys of the grate where they vaporize and that vapor raises back into your meat giving a taste that's the best. If you're on the fence about buying a set of GG "Just Do It". Good luck and good cooking.
Bill