I'm seeing lots of little things in .913 that weren't in the changelog.  Nice! 

Things I'm starting to really like:

a ) Hard AI is putting up a challenge

b ) Monsters aren't taking over every one of my cities, but they're still dangerous

c ) Item selection... it's getting harder and harder to choose what weapon/armor/item to pick

d ) Loving the new quests

e ) Hit point and leveling balance is near perfect

f ) Economy

g) Champion diversity (more changes to come like unique spells?)

Things I have questions about:

a ) Have you been changing the map creation engine on us?  I've noticed more fractal type land masses in the .9x series.  They seemed more continental in the .8x series.  Is it possible we're going to see an option to create different kinds of land masses ala Civ?

b ) And of course, improvements we're all waiting for and know are coming:  UI polish, tech tree, faction differentiation, city management, and diplomacy