I have used hemi-sync now for almost two years, sometimes every day, sometimes weekly.
Two tangible benefits stand out: deep, rejuvenative relaxation and informative exploration of places otherwise inaccessible. If that were not enough, it’s a lot of fun – very playful and full of surprises.
Disclosure: Current hemi-sync collection includes the complete Gateway series, Into the Light and the Catnapper. Some were bought new from The Monroe Institute and some were bought used from Amazon.