I had an issue on my server that caused a bug, but the developer came to the rescue and fixed my system - even though it was my error.
Great plugin and great service.
I recently had the developer, Tuan, customize the component to add a DEPOSIT functionality. I believe they might be including that in the next upcoming version. This way we can receive a percentage or set amount by paypal, then "at the door" receive the remaining payment. Works perfect for workshop, retreat, class registration.
Like all things, some extensions might have the occasional bug, but you don't have to worry about your concern or issue going unanswered. Tuan has always responded to my questions in the forum with a solution.
So, not only are you getting an excellent product that does what it actually promises, you also will get reliable customer/technical support in any case you need help, additional customization. Ossolution also listens to you. If you have feature requests they actually incorporate the useful ones.
Excellent product. Affordable pricing. Reliable service.
Stop searching for other event booking systems, you've found the right one already.
Thanks Tuan! - Tam :)