support desk is quick, they help you in anything you need. In the other hand forum could have days without answer, but please note that forum is for the people without any paid service.
if i have something to claim is the lack of written documentation specially when it comes to entry layout, i would suggest the developer to create one; however they have some tutorial videos showing the use of the extension.
In summary it's a very good extension, easy to use and good support.
It uses a cookie so i don't have to declare my age everytime, it remembers me, so if i'm allow to enter the site it always let me in if i'm not allowed it always redirect me, using my birth date just once.
besides this the projoom team has excelent customer service. i had a problem with my payment method, so i write to the support mail. they solve it within minutes, so i can use this fine extension.