hi tracey,
i was on it at 100mg at night for about a year and i really didn't like it.

pro- it totally works to slacken the nerves thereby reducing pain

con- i couldn't wake up in the mornings unless i had like 10 hours of sleep. and then i would feel disconnected for the bulk of the day. I was unproductive and felt my life was becoming more like a dream than reality

Now i am on 25mg of elavil instead which does not have a massive effect either way pro or con. Not too good but also not too bad.