What results can I expect from Acupuncture?

That is a very difficult question, each person has to be treated according to their personal circumstance, not every one will react in the exact same way.
It is my experience that about 80% of  clients have positive results with TCM treatment.  Of that 80% most will receive significant results.  As with all forms of treatment TCM is not magic, results at times are very fast, but in most cases a client should plan to have at least 5 or 6 visits. 
Does Acupuncture hurt?

Again each person will have a slightly different experience.  Treatment is not sensation free, yet very few would describe the procedure as painful.