After a reasonably frustrating session trying to play a MP game with my friend, and continual crashes/disconnects, here are some initial thoughts:
1. The multiplayer functionality needs to exist within the game itself, and not piggy back off Steam. It's too confusing and clunky as it is. I realize this may be temporary.
2. There needs to be a character select screen when initiating a MP game (creating or joining) so we can choose which character we want to play when we go in. Right now it's very confusing and unclear, and I started the first two games on a class I wasn't interested in playing as a result. Again, I realize this may be a temporary initial implementation.
3. If you drag the cursor down to the edge of the screen, it scrolls away from the viewable area and you end up lost in the dark. At one point my mouse slid down the screen when I was away from it and I had to quit the game and come back as I couldn't get back to the game area. I may be missing an easy way of getting back, but I couldn't find it. The screen should never scroll beyond the viewable area IMO. There's no need for it to ever do that.
4. Multiplayer in game chat is an absolute must! Please implement this. Not everyone wants to play with VOIP, and very often you can't for reasons of quietness. We need to be able to communicate with each other in game without Shift-tabbing to Steam constantly. I realize this may be temporary, but I'd hate for the game to ship relying so heavily on Steam because no-one said anything - and that's not going to work with more than two people anyway
5. NPC movement/action during combat is a little slow. It needs to be sped up by at least 2x IMO.
6. I miss the targeting reticules from the Kickstarter video, but they would need to align with the ground (just mentioning this as an aside - it jumped out at me when I was watching videos and deciding to buy in or not).
7. The game looks and feels good already More feedback soon...