Yup. I had pretty much the same problems, except I didn't even get to installing because the requirements put me off.
I just wanted something that sucks less than PHPBB or SMF, you know? But this thing mainly seems more bloated, and the live demos didn't really quite convince me of the "sucks less" part either.
One thing I haven't even been able to test yet, once you have it running, how much is there to configure in order to tone it down? Because if you want to run a forum for pretty much anything but a tech audience, I would like to get rid of all the "dynamic" and "interactive" javascript stuff. Because it really makes it less interactive/dynamic for people on old, low-powered computers. They need basic HTML full page reloads (assuming the HTML is somewhat lean--leaner than PHPBB/SMF preferably :) ).
Because the unique thing about forums, that still gives them relevance in the 2010s, is that you can gather a community with extremely specialized niche knowledge. If the person who knows everything about, I dunno, stained glass dyes, psychogeography or uh Sumerian breakfast recipes, just happens to have a really old machine you don't tell them to upgrade or suck it, because he or she may be one of the only people in the world with the particular expert niche-in-niche knowledge that brings invaluable quality to the forum, much more than having a shiny slick UI that looks buttersmooth on a new laptop.