EDIT: Just got word that the update is going through the GOG approval process. Yay!

I'm surprised nobody's talking about this game here. I haven't played much yet, but I really like what I've seen so far.

You're right, i loved the game! Some areas were really challenging and it took me some tries to figure out how to beat the queen, but it was a very pleasant experience! Can't say much about the new content, i didn't play it so far. Did you?

I haven't yet, I haven't had much time to get through even the main game yet, I've just really liked what I have played. I see that there still hasn't been a GOG version update, though, unfortunately.

I think there should have been 2 updates so far. The first one included bug fixes, for example i didn't receive any trophies during my playthrough, what should be fixed now. There was a second big update recently that i think included the new content, but I didn't check so far.
Have fun with your playthrough! :)