OrangeTheory Fitness in Lakeland, Tennessee offers a 30-day money-back guarantee for new members. If you take 12 classes within your first 30 days and don't feel like you're living a more vibrant, happier, healthier life, you can get a full refund. They also provide the first class for free.

During their heart-rate based HIIT workout, coaches guide participants through five different heart rate zones: resting, easy, challenging, uncomfortable, and All Out. The goal is to spend at least 12 minutes in "The Orange Zone" to boost metabolism, burn fat, and calories.

OrangeTheory Fitness also emphasizes the use of heart rate monitors to track intensity levels and offers their OTbeat™ heart rate monitor for purchase at the studio. The mobile app stores performance summaries from each workout.

Overall, OrangeTheory Fitness aims to provide a total-body group workout that combines science, coaching, and technology for maximum results. They offer different membership options including unlimited classes and reduced rates for families.