Event Espresso headquartered in Utah offers an event registration and management platform supplying automated help for ticketing and ticket purchases, registration forms and pricing, promotions and correspondences (e.g. email), multiple attendee registration, and other features.
As far as I have found, Event Espresso has no peer. Yes, there are other WordPress plugins that provide for event registration, including a few available through Code Canyon, but none of them promise the rich feature set and robust support of Event Espresso. It seems to be the only real game in town, but luckily it's a good product. It's highly extensible, so it should scale well to any size or type of event. Through add-ons, it's doubtful there is an event scenario it can't handle. And because it runs on WordPress, you can incorporate it as part of your site--the plugin even does a good job of picking up design cues from your theme, or you can customize it using CSS.
Ungerboeck Software is best suited for small or large service or product based organizations. The "out of the box" work flow process & set up is suitable for most business operations. The flexibility to configure work flow, layout of screens, fields, and individual user settings makes the software suitable to many business types.
Integrating account creation with WordPress should be included in the core product, not an add-on. It's extremely frustrating to have to pay extra for that, especially when that add-on is not as flexible as it needs to be (for example, if someone is enrolling for a class on behalf of someone else).
The data visualization is a mess. That feature doesn't seem to ever work and it should be left out until it does.
The ability to show participant data on the front end is extremely limited. Event Espresso does provide a few hooks and some limited documentation on this feature, but I feel it should be more robust. Perhaps that can be a focus of future releases.
At availability booking level, I would like to see an option to add Move In (set up) and Move Out (tear down) times rather than copying/pasting once space is booked.
Strengthen the iEBMS field functionality; specifically the online booking request and calendar of events.
I looked at EventBrite, but it wasn't customizable enough for our needs and didn't provide the level of integration with our website that I desired. I also looked at the ticketing system offered by The Events Calendar for WordPress (by Modern Tribe), but it too lacked the feature set we needed. Only Event Espresso offered all the features, customization, and integration we desired and needed.
Event Espresso has literally changed the lives of our volunteer organization, saving hundreds of hours of time and eliminating the frustration of paper enrollment.
The add-ons allow you to accomplish just about any event registration goals you might have. It's an extremely powerful product.
Integrating the plugin into our website was a breeze, and it's approachable enough where volunteers can create the classes and conduct the online enrollment all in a web browser.