Hi Casey,
Thanks for checking out our plugins!
You could use Event Tickets Plus to sell admission tickets, but please keep in mind that our plugins are really built around events. So to sell daily tickets, you could either: 1) add tickets to a post/page and use additional fields to allow users to enter the day/date for the ticket (note that you would need to customize the plugin to add validation, such as a datepicker, to these fields) or 2) create events for each day you want to sell tickets for using The Events Calendar and add tickets to each event.
Regarding upsells, Event Tickets Plus uses either WooCommerce or Easy Digital Downloads to handle the checkout process. So, upsell functionality would be handled through that plugin – I would recommend taking a look at this article from WooCommerce.
Our refund policy does entitle you to a full refund within 30 days of purchase if you’re not satisfied with the products, so feel free to test them out!
Please let me know if you have any other questions!
Thanks,
Jennifer