Having watched all the WWW, all of my issues thus far with HOI4 have been due to the mechanic, all of which will be fixed with mods as anally retentive people like me get irrate when you deploy 6 fresh divisions 600 km within 8 hours straight to the front.
IT"S JUST NOT LOGISTICALLY SOUND GODAMNIT.
Though maybe this will be looked at prior to release. Will have to wait and see. Apart from that nothing will get me down, it's looking great. Love the UI, the way equipment is handled and the A.I commanders amongst other things.