Loving the performance in build 300 so far. Preview playback is much smoother and using VSTs is much more bearable now. I'm really hoping it fixes the crashing too but only time will tell. I was also very excited for the Text-based Editing feature but unfortunately the way it works right now currently seems useless for the videos I make which are long studio voiceovers with many takes stitched together.
Currently each take shows up individually in the Transcript (Beta) window. So my feedback for this beta is to add the ability to transcribe tracks. This way I could transcribe the whole voiceover track which would make these long videos much easier to work on.