Password Managers, What are your thoughts?

So I’ve looked around on this subreddit, and others, and I’ve seen posts asking for recommendations, but I haven’t seen many that have actual good debate/etc. As such, I wanted to ask:

1. Do you personally use a password manager, why or why not?
2. What password manager(s) would you recommend, and what made you choose them over other services?
3. What kind of password do you use for your master password, a more memorable kind, a random 64char string, or otherwise?
4. What have you put in place to make sure you’re never locked out of your accounts, backups, writing it down, etc?
5. Would you recommend using more than one password manager at once?
6. Have you ever been in a situation where you got locked out of your manager/passwords/accounts, if so what did you do to recover from that situation?

Thanks to anyone who participated in this discussion!