One of the reasons that we chose this extension was the possibility to submit events from frontend. However, this did not work.
I can't recommend anyone to buy this, I'm afraid. Unless you have programming skills or a lot of time to spend with the support team.
Unfortunately the program is not ready to sell, save your money.
So I bought it but I can't use it, because I need radio buttons.
I have not been able to search their forum because you are directed to the Joomla JED to write a review when you login. (?)
But it is a really good component, that is if you don't really need those radio buttons...