I've heard of Date Check but never used them. However, for $50 lifetime, a guy can have his information verified, give the essentials to a provider and she can call RoomService2000 and they can verify the information he gave - at no cost to the provider.  And RoomService2000 has been around for many years and is quite reputable.  
Guys in the Northeast may not know of it, but they should.  For those who verify, its worth it.

D check works well if you travel or like to meet ladies that travel. All the ladies I meet from date ck. seem to have there act together.Of corse I only speak from the hobbiest side. I live in Atl. area and wish more local ladies used it.