I'm mid-career, which means I've already been through one round of job-hunting where I got "help" from recruiters. On the one hand, having someone write you about job opportunities is awesome. On the other, they can be very unprofessional, and I get the feeling that there are a class of recruiter jobs and another entire pile of jobs that recruiters don't have access to. And I wonder if that second pile is where all the "good" jobs are.
What has been your experience? Did you work with a recruiter at your current role? Do you recommend or advise against letting a / many recruiters steer your job hunt?