I've been on 4 mg a day for about a year. 2 when I get up, two before bed. I find that works out best for me to keep my anxiety stable throughout the day.
I'm prescribed Xanax too, but only for really stressful times. Xanax will make me feel great but I'll be a little out of it. I can maintain well on Klonopin.
However, I am a bit scared of how/when I'll get off of it. I have an addictive personality so it'll be tough.