The baked in feats...I dunno. We never used feats (not that I didn't allow them, my players just never used them). I'm still in the middle on this. I was expecting more compatability but the more I read I notice they say "your adventures and source books will still be usable". They never explicitly say "Rule books". I'm okay with this just as long as I can use the adventures and setting books I have. I don't mind upgrading to new core books as long as the play style remains the same. Inspiration, so with the starter set we used it but the players just forgot they had it so we stopped. I'm curious to see if picks up. Don't know that I like monsters loosing the ability to crit. It brings tension to the combats. I can see the reasoning though and it might play better than I'm thinking. I know this is play test material and will change. I just hope the new D&D doesn't regress. I also hope we get TotM info that one guy asked for. I mean they told him he would be pleased then they unveil a VTT with minis and such. I have nothing against minis or VTTs by the way just not my favorite style.