If he doesn't teach both stand-up and a solid ground game, I'd save my money. It could be good for cardio, but that's about it. Majority of people will never get into an altercation where they'd need to use it anyhow. Plus, they teach self-discipline and frown on altercations unless it's the last option. Only way I'd take a stand-up style of fighting is if it were Muay Thai!