Calling tPF Travel Nurses!

My DH's workplace is on the verge of shutting down (live events were the first thing to go and they will be the last thing to come back) so he's looking at applying for a job in Washington State. I'm looking into doing travel nursing in the area he will be in and wanted to get some insight from those nurses who have done it for a long time.

Any agencies to stay away from?
What is the average housing stipend?
Have you ever had issues with your placement or housing and how were they resolved?