It can be useful only when it's working, but can be documented, but through who's integrity. I've used it, never abused it, but can be taken advantage of. Only as long as your willing to be willing to quickly make arrangements to go back to court. This site does nothing unless you want it to. Again, as long as it's working. If your phone stops working, make a new gmail, if you don't know your gmail, make a new one. Problem after that, must make sure you get linked back up to talking parents, because an invite doesn't have to be accepted. If they don't except, you just tell customer support that the other parent won't except, then provide the old email for your account as well as the new email, both parties names including the child's, and the child birth date. Customer service will then swap emails for that account and you can continue on where you left off to avoid the delay when the party isn't being cooperative, and disregarding the websites providing ways of communication. Or that may be the full process, all I had to do was give them my full name and old email, and the next day it was done. First explanation of situation 24 hrs you get a response, ask your name 24 hrs, then ask your email, 24 response of swap.