Just tried it for a few hours. Seems good, similar to reddit. But yeah, the fediverse part is confusing.
Some issues I have so far are, (1) when searching for communities, it seems that they are fragmented throughout the fediverse, whereas in reddit they are in one place. which makes it kinda odd and well (2) it's kinda small-knit. which I guess is good but feels odd coming from a large site to a small one.
Still, I'm gonna give it a try. to me its something new but similar :)
I feel that's not too disimilar to reddit with a lot of splintered groups (but obviously more so, particularly at first). I think in time this will condense into something we're more used to