The customer service was outstanding! They were able to answer all of my questions quickly and efficiently via email or phone calls throughout our project implementation process.
I did not have any issues during this time but if there had been one it would be that they are very good about keeping you informed and up-to date as things progress. We used them because we wanted something more than an online registration system - we needed to provide information regarding upcoming events (website/blog posts) which could only happen through their platform.