Many features in a compact design, very good overview. Special designed for easy use, That is for the admin site as well as the very nice portal.
Therefore like the best is not easy to say. So many things.
Anyway: Compact good overview and designed as it should be.
I don't have or see any issues yet. And if there are new coming i will make a request. Documentation could be better, use it in combination of screenshots, samples, too mine opinion that's the most effective nowadays.
My advice should be deploy in cloud, then you can do it without any IT knowledge. Further settings is done in a nutshell.
Perhaps not the usual business, but we are a soccerclub, we have about 1500 members. We are using it for questions, knowledge base, and ticketsystem. We can't make appointments to speak to every member, we try to help the members in a modern way. And this way we can help everybody as we like and most of all, our members like it, even competitors.
I have been looking around for many years, but this solution fits all the needs we have.