General feedback:
Including act II, I'm very pleased about the length of the game so far. I don't know how long Act IV will be, but I'm happy there's a lot to do.
I switched to Easy early on, because there were so many battles it was taking far too much time to get anywhere. There were no challenging party battles on easy in Act II, some were ve-ery long though (inflated HP and mobs with resurrection). Act III had a few minor challenges, mainly kraken and the last boss fight (the stats must have been crazy in that one compared to the rest of the Act). Some flashback quests had fights that were challenging on Easy, but they might have been avoidable, I chose to go fight pretty much everything I could in the whole game.
As for the story, even though it's very diffuse (no set goal in Act III really), there were some laugh out loud moments, I appreciate that. In my sorry opinion the volcano schtick got really old from the third time onwards though, but hey, humour is subjective. Rowinda was otherwise generally awesome, and the only mage I allowed in my party.
I spent a lot of time shopping and optimizing, maybe more than I needed to on Easy, but you can't take the min/maxing out of the seasoned role player, so kudos on providing a bunch of items to play with. I ended up with a lot of damage and speed so I could grind faster. If I could make one complaint, it's annoying that you can't see what you've got equipped when choosing quest rewards.
I romanced Chalassa, that worked out well, and nice one with the choice of boss fights in the "save the yuri" quest. Got me interested in what happens to a certain piece of tail in the future.
Alright, this was my "play as intended" game, now I'm going to go break stuff and play not as intended at all. After I've rested my eyes and head after that snake grinding that is...
EDIT: Oh, and typos and stuff coming later.