No one is using it, the "verification" involved is a joke, their marketing campaign is based on SPAM and smoke/mirrors, etc., etc.  You see banners with providers faces on them advertising the app because it's FREE promotion for the providers and the app's weak attempt at making it seem like people are actually using it.  No one is.  They just appeared out of nowhere with a really unsuccessful SPAM campaign that fell flat on reputable ladies.  So they give certain providers free advertising to use their images so it will seem like some people actually use the app.  
   
 Why would any of us trust an app that makes a bunch of false claims from the get-go??  There is no actual verifcation when you join, there are not thousands of people already using the app, etc.  Not to mention apps are inherently NOT secure and no way to do business in an industry where discretion is critical.  
   
 In other words, joining would be a waste of your time and money.  Maybe someday that will be different but do you want to pay for a useless service in the meanwhile?