After graduating from nursing school, I went straight to ICU (10 bed) and got myself trained. Like you, therefore, I have very lucrative ICU experience, so it was very easy to find Agency job.
when I was full time staff RN in an ICU, I hated employee meeting, group, must involvement in the Unit, various pet projects, FORCED overtime (they fire people who don't show up in off days), nasty performace evaluation, and I hated all of them.
Now that I only work for Agency as per-diem, I can work as many as 36 hr. to just once a week. It is so great not having to deal with management completely.