Quetiapine...?

I'm bipolar and already on a mood stabiliser. The psychiatrist has just added quetiapine for mania. Starting low dose up to 200mg over time.

I know it's prescribed at low doses for insomnia and anxiety as well, but mine is specifically for bipolar. Although side effect of a good night's sleep would be welcome!

What I'd like to hear is if anyone has experience taking quetiapine. What effects/side-effects did you experience? Did you find it helpful?