I'm not playing the EA myself, but from what I got out of the Update and Swen's presentation the main thing they toned down was the companions constantly having a (mostly negative) reaction to EVERYTHING the PC says/does, including even when they're not physically there when the PC said/did something. Seems eminently reasonable. Someone can be as dour or sullen as they want to be and yet make a choice that they're not going to respond to every single thing the leader of their group says/does that they dislike. This is what is actually normal behavior.
The reactions are much the same. From what I've noticed --
Wyll is pretty much the same in my playthrough
Shadowheart walks around with smile more often than not. Previously she had a resting scowl and the only time you saw her smile is when you mentioned night orchids. Someone made a post reddit suggesting the smile was graphics bug. Previously she thought the kiss was a mistake, now she's happy she made an impression. I'm guessing they swapped in the "committed" relationship voice overs.
Astarian is much friendlier -- which is strange since he and my toon disagree on nearly everything. Before he started out conversations with "you're staring again"and a scowl and now it's "well hellloo" and a smile.
