Eventnook is so easy to work with! It's definitely a go to one stop platform for any event planner. It takes care of your event from the beginning all the way to the end - from setting up a registration page to having an overview of the attendees. Wouldn't have it any other way.
I've used EventNook for my website Yago.sg. It may sound plain, but what I really loved about it is that everything just WORKS the first time you set it up.
User interface is very simple. And support is great.
EventNook is really easy to use and the team really goes the extra mile to provide customised services when necessary! Do use them if you're organising an event! :D