Holy Moly! I just saw the pictures of your bike. That was a nasty one.
The "L" word? It depends. My wife and I were rear ended about ten years ago. The other person's insurance company was there all the way, making sure we got the right medical care, and telling us that as soon as we were wanting to settle, they'd be willing to talk. I think they did a very fair job at settling.
My daughter, on the other hand, was rear ended by someone insured by Allstate. They started nasty and got worse. She ended up getting a lawyer just to get medical attention.