There are good recruiters and there are bad recruiters, pretty much like any other business. A good recruiter stays in business through referrals from satisfied clients, and that is exactly how you need to identify one. Responding to ads from recruiters is not likely to get you a good one.

Ideally your recruiter should be working for the employer who is seeking qualified candidates, and that employer pays his fee. In my field that's how it works - any recruiter who wants you to hire (i.e. pay) him is probably not going to be of much help. He's reading the same ads you are, and you can do pretty much anything he can.

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2002 E320 4-Matic
2008 Subaru Outback
2009 Subaru Forester