I have the truerife--117 and the SC--1, also known as the magic bean, and I am happy with both instruments.
The 117 is really great if you want to blast specific areas in your body really hard. The magic bean is great for full body coverage, for super easy usability, and because it has an incredible range of frequencies that can transmit.
I found this post on another forum that you might be very interested in. tons of good information on hepatitis here