Installation was frustrating as documentation is a bit on the thin side, but support is prompt, polite, and knowledgeable, so it's hard to hold it against them.
The publisher seems like a young company. I hope they get plenty of business because I am really looking forward to working with them and with future versions of the software.
Where EasyBlog really shines is its support team. Replies are rapid and competent. For some of the more exotic features I wanted, they even helped me figure out how to go about adding my own module with PHP.
I don't think you can go wrong with these guys.