Kundalini has some significant benefits, some of them are:

Stress regulation
eep improvement
Improves cognitive functioning
Boosts self-perception and self-appreciation 

Body posture
Builds strength

Improves flexibility
Connection with the inner self
Empathy and mindfulness
It helps with addictive behaviour

Helps ease stress and anxiety 
Helps with period and menopause pain

After some time of practice you will notice changes from how you walk to how you think about yourself, how you manage difficult and stressful situations more composedly and how you can focus and enjoy the present moment.