Playback and browsing works but it doesn’t have feature parity with PMP yet. We are in the process of adding this functionality but PMP is so feature-rich it takes time to do so. It’s worth noting that PMP has features that no other clients has.
To answer your prior list, in its current state it has skip intro and watch together is coming to it (don’t know of the timing though). Audio/sub delay settings (along with PMP’s input handling) are currently in progress. And my favorite, it already has the OpenPHT library artwork screensaver.