I've been going to a counselor since 2008. It was a condition of being sent to rehab for free by our local substance abuse agency. At first (I was still drinking) I was quite arrogant and resented having to come there. As I got sober, and then eventually stayed sober, I've come to really value my time with my counselor. She has helped me so much. I don't go as often now as I used to, now that I'm nearly four years sober, but it helps to see her once a month to vent and get suggestions.
I can't say enough good about having a good counselor.