Acquiring knowledge and information about the biofeedback equipment 12/26/2023

I have been watching some videos published by the biofeedback manufacturer. I have been debating if I should purchase their equipment or not. I want to own the equipment very much but it is expensive. I talked with my husband and my friend. They both suggested me not to rush, but watch their training videos as much as possible to make the final decision. Their campaign of 10% off ends on the end of next month, so I will investigate until the deadline.