not to say, one size fits all, but the two things that have really impressed me, in regards to MS:
some of the video testimonials on youtube regarding LDN and MS
and of all the LDN research, the success with MS seems the strongest
and this one doctor/patient success with diet and supplementation bringing her back from the brink of total disability to standing and speaking at a TED conference:
http://www.youtube.com/watch?v=KLjgBLwH3Wci don't know if these are the exceptions or the norm, but these are the things that got me really excited.