Question: is mienshao a good pokemon?
Answer: Competitively, it is good in the lower tiers, but it is of no use in the higher tiers. Lucario and Blaziken outclass it in every single way you can think of. Just saying, Mienshao doesn't suck in competitive at all. It's a champion in UU, and has access to two fantastic abilities in Reckless and Regenerator.