Well, one example is how I can't reply to specific comments which makes story comments kinda awkward. And if you look at someone's profile, it doesn't show you what groups you have in common, you have to kinda look for it. Small things like that.
It's really hard to tell, honestly. But, I'm liking it so far. There's just a few features from EP that I still miss. And obviously there's a lot less people here. Also, hi! Hope you like it here too!
@Nerd: do note it's still in development now. Features EP had that are still missing are mostly coming as well. But the basics are here now and the community is great!