I had accupuncture three times, with mixed results.
The first time, one particularly needle hit just the right spot, and for a while, one side of my back felt the best it has in years!
I got to remember what it felt like when it didn't hurt.   Unfortunately, the feeling didn't last forever, so it was not a permanent change.  
The second time, in one of the places a needle went in, a muscle was sore for at least a month afteward.  That discouraged me.  
The third time, I went to a different person, and didn't seem to get much of any result.  I would like to hear from others, too.