Ask HN: Recommend a Recruiter

Recruiters don't get much love on HN (rightfully or wrongly I don't know, I've never dealt with them). However I've started a transition in my career and have heard from some coworkers and friends that have had a decent experience with recruiters.

I thought maybe it'd be an interesting idea to see if any HN readers have used recruiters and, if the recruiters have done a good job, would like to give a shout out so the rest of us may have another path or two towards a new job.

So I ask HN, do you have any recommendations for recruiters you've personally worked with? It'd be best if recruiters themselves didn't post in this thread (at least not at the top level), just your standard HN reader that has personal experience.

Personally, I'd love any recommendations in the DC area. Thanks HN!