App Store Testimonials
The "Lower Back Yoga - Floor Class" app includes all classes of the "7 Classes" app as a single in-app subscription package. Here are App Store's reviews of the "7 Classes" app from the US, UK, Canada, Belgium, and Luxembourg.
You can find many student testimonials on the class' Common Sense for Your Back page. Here is an audio recording of a student leaving a message.
All testimonials were reprinted on the site with student permission.