What are advantages to Crusher's methodology?

A: Save Time: Don’t spend hours of your precious time at the gym. Warm up, work on form and technique, work out, cool down all in about one hour. Get in, sweat, get out.
Results: All workouts are timed or measured. We measure our progress objectively – am I faster today? Leaner? Stronger? better? – instead of just going until we feel like we’ve put in enough time.
Certified Coaching: You’ll have a certified coach supporting, correcting and encouraging you each class.
Diversify your workout: Bored of the same routine? Crusher group class workouts are rarely the same. Each one has its own challenges, rewards, and fun.