I have the Balance Wear Vest from Cindy she fitted me last March in Oakland California. Yes it was expensive I paid $1400 US for the vest and 2 sessions. I had to fly to Oakland from Canada has its not available here as of yet.
It seems to help people in different ways I don't know how to explain but it helps me for now the only draw back is that I will have to be have the weights re fitted which means that I will have to go to Oakland California to visit Cindy.
I love my Vest as it makes me more secure and confident in walking without aids and I wear mine every day for about 4 hours. It doesn't seem to work as well on me when I am tired.
Any improvement in taking care of SCA3 is a miracle and there are no side effects.
Hope this info helps!