To be honest, we're pretty surprised about the reactions on the combat system - we actually thought most of you were going to prefer it over Divine Divinity's combat system. But you do need the pause key. If you play it without, life sometimes becomes very complex in BD. As for the combats themselves, remember, you only get the beginning of a very large game in the demo, and the first levels serve the purpose of familiarizing you with the controls.
We have picked up on your comments, and here's what I promise we'll address:
Targeting - non trivial, but we'll think of something. It's true that select all/ctrl is something that should be in.
Hotkeys - we'll add more (I do want to point out that you can recenter on an active partymember by pressing F1 or F2 twice, and select the leader by pressing it once)
Explaining:A lot of the comments I read here are actually already addressed in the game, but those features are apparently not clear enough. I don't know exactly how we'll explain, given the sheer amount of features, but we'll try to think of something.
Please keep the feedback coming, we are listening.
Thanks