Hi there!
Thanks for getting in touch! I’m sorry to hear that you encountered some issues with a previous version of Events Calendar PRO on your site–that’s certainly not the experience that we want our users to have! We’ve made plenty of strides since version 3.x to improve the stability and functionality of our plugins, and we’d be glad to have you again as one of our PRO users. While we don’t offer a demo version beyond our live demo site WP Shindig, we do offer a very generous 30-day refund policy on all of our products, including Events Calendar PRO. I’d encourage you to give PRO a try on your site, and please don’t hesitate to reach out to our premium support with any issues you might encounter as you’re putting it through its paces! If at any point you should decide it’s not quite right for you, let us know, and we’ll be happy to process a full refund for your purchase.
I hope that helps to address some of your concerns here–let me know if you should have any other questions about our products or policies! Thanks again for reaching out! đŸ™‚