Weightless Training - zero impact running, providing safer and more efficient endurance training
Increased Core Activation - stabilizer muscles in core must work harder to provide power and stability

Faster Recovery - recover from injuries 30-50% faster, rehab from any injury much faster
https://www.youtube.com/watch?v=s_QDhXkPfPs

Rehab running injuries:
https://www.youtube.com/watch?v=Yiaoh_t3GyQ