I had one of my rather rare games of 40K last night - actually my first game with the 6ed. rules. Also my first game with my AdMech force. Liked how the new rules worked, though there was a lot to keep track of with both a new rulebook and a new codex. The enemy was CSM. Also liked how the force performed in battle, lot more durable than I anticipated, and again some units fell much more easy than I expected. All in all it seemed pretty well balanced, so now it's just a question of getting some experience and figure out the best combo of troops. The game ended in draw btw.
Think the battlefield works pretty well too, need to finish the last couple of terrain pieces I've already bought, and then add a bit more 3D.