I think 411 is more worldwide than the others, and it takes more to get approved on 411 and rs2k than on date-check. I like the options date-check has when giving a referral though as opposed to just one size fits all. Just because I give a guy the go ahead for the next person, does not mean he was an excellent client. I would like to be able to let other women know that certain things put me off, but that they might not care about those things. rs2k makes you give them all of your real information to even get started...not doing it just yet ha ha.

RS2K is popular in Chicago and maybe some other mudwest areas. P411 and Date-Check are more widely accepted in other areas. Apparentky RS2k does want more personal info from you.

Personally I belong to P411 and Date-check. I find P411 more user friendly with their search features, OKs and PMs to providers. They are also more updated, as they will inactivate provider accounts if they don't hear from the provider in 2 months, whereas date-check has profiles up for providers who moved or retired years ago. Even though I joined DC and paid a life membership, if I had to do it again, if would stick to P411 only. Every lady that I have wanted to see who is on DC, is also on P411, so I have actually never used DC to get an appointment. That may not be the case in every city or region.

Just my .02

As mentioned RS2K is more popular in the midwest, but, IMHO they are all good.  I have not used RS, as it is not widely used in my location.  P411 does allow the providers to indicate on their profile if they are newbie friendly.

Swim