The only commitment is to yourself. Everybody is unique. How long it takes to rebalance your body will depend on your needs.
Having a partner to practice with helps. You’re more likely to exercise when someone is counting on you to join. If you are able to rally a classmate for a semi-private DUET, great! If not, I’ll line one for you. If you prefer to continue with private instructor, fantastic.
As for length of commitment, that depends on the individual. Essentrics™ is a rebalancing program. Some will restore alignment after a few sessions. Others will need months to recover their range of motion.
To get started you’ll receive the best results coming twice a week, for a month. This allows yourself to get familiar with the format. In the process, your body awareness will increase dramatically. From there, you decide what feels right. There is no contract or obligation.