Hey David, sorry I didn't get back sooner. The cast iron grates are good. I saw everyone here using them so I had to try it. The Weber puts out plenty of heat to get a good sear. I posted some pics earlier that showed some pork chops we did. The only problem I am having is when I flip the meat, the second side is sticking. I am sure I can come up with a remedy for that. Other than that, I love it.