I did Vital Stim therapy and would consider mine a success story. After my treatment of radiation and chemo, and living 100% on my feeding tube for about 6 months, when I did finally attempt to start eating by mouth I found myself having trouble swallowing anything, and when I did attempt to get something down I would end up getting fevers. After about 8 weeks of the standard swallowing exercises prescribed by the Speech therapist at the cancer center, and a 2nd failed swallowing test,the therapist eventually said there was not much more they could do but mentioned Vital Stim therapy as a possible last option. There was literally only 1 place that offered it in the whole area, at a retirement home. I started the therapy about twice per week for about 30-45 mins and it was not covered by insurance.
I really started to notice improvement right away and after a couple months I was eating lots of different foods. Eventually I was able to get my feeding tube removed and have been eating and drinking pretty much whatever I want(as long as its very moist or I have water to wash it down with) for about a year and a half now. I have no way to know for sure if my success was completely due to the Vital Stim, but I can tell you I did not do nearly as much excercise while doing Vital Stim as I had been doing prior to beginning Vital Stim with minimal results.

Let me know if you have any other questions.