I'v met some good ones and quite a few bad ones. The good ones actually care about getting a good match the bad ones only care about getting paid. You can usually tell the difference from their interviews. I've used several over the years and never ended up taking a job they tried to set me up with. All my career moves and been helped along by acquaintances (not close friends). I would suggest taking some time to visit the new city and attend some conferences or meetings of professional associations related to your career. Press the flesh and meet people. I think that is a more sure way of getting a good position that through a recruiter.

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Jason Priest
1999 E430
1995 E420 - retired
1986 420SEL - retired