1. Event Booking is a really great product, which simply works out of the box. There are tons of options, and you can even translate the language file from within the backend.
2. The support is outstanding. Very helpful, and fast: I got a reply and solution for a minor issue within ten minutes.
I'm very happy with Event Booking, and recommend it to everyone who's looking for a booking solution for his (or her) Joomla site.