The PDF for this came out this week. It's a shame it released so close to PHB 2. I probably won't have time to give it the full treatment before I have to get to work on PHB 2. I did make a dent in it, parsing all the mechanicals first and then going back and doing the softer elements.
I just cranked out Delves 1-10. I haven't had time to do any specialized token or map work yet, but some delves populated full tokens just off what I had in my library.