I'm definitely an advocate of taking creatine. Being pure carnivore (or trying to), I stopped taking it personally a few months back since I eat so much red meat that I figure I probably get enough of it naturally (continue to flip/flop on that one as I have creatine in my house unused at this point). However, it has well-studied benefits for both performance and cognitive function. It's not just about squeezing out those last few reps.