Browsing for new content and communities is so much better here. Like, incredibly so. I don't know if it's just the lack of repost and karma bots or what but the quality of content is so much higher.
Lack of advertisements. Last time I used the official Reddit app it showed an advertisement every 5 posts or so. And of course no way to disable it. Good riddance.
We're not there yet, but: stability. Once the development is reaching a stable release, even a few big servers shutting down will have no cascading effects on the rest of the network. It will just be some communities that are gone and that's it. This also means no outside manipulation, no single attack vector for the network. The truth is, the best things about it will be the things that we won't see anymore.
I'm finding the signal to noise ratio is higher here. Much higher quality content at the moment. I even see some bots that post the entire article rather than just linking it. I hope that catches on.