Your best bet is to do your own research about that bro. Everyone has their own opinions about which gym is better for what they do. I've been grappling since I was 5 and I'm 28 now. I got into mma when I was 12. Some gyms are better at one thing than others I've found. And some do line drills and don't really teach you proper technique or form. So like I said, jump on google, find out what's around you and check them out yourself. Most good gyms will let you hang out in there for an hr or so to see what they're about. So do that and find out what's best for you. If they're doing line drills WALK AWAY.