I'm in the same boat. Dead Space 2 was one of my favorite games this gen as well.. I mean it's right up there, top 3.. maybe the top. Dead Space 3 doesn't seem to know what it wants to be at times. The game definitely needed to be more difficult.. floating through the junkyard untethered isn't that exciting, but it could have been e.g. It seems like every time I run into something new or fresh I think, "This would have been incredible if the game had been made as tense as the last ones."
When I first heard they were doing "universal ammo", I thought okay so that means they'll be cutting back on item scavenging? Completely the opposite, you scavenge twice as much as you did before. It's really confusing too, because I don't know the rates that certain weapons consume ammo. So it's just a matter of having a ton of ammo to make sure you're covered, and even on "Impossible" difficulty it's stupid easy to be overstocked on everything. It basically amounts to -- "Do I have at least 20 clips? Okay, good to go." Kind of stupid in a game that adds a bunch of "resources", they should have kept the old ammo system.
Disappointed to hear Classic Mode is really just "missing some features mode". The other mode where you can't die once... I used to do that with old survival horror games like Resident Evil or Silent Hill because my Playstation was broken and unable to save games. Then again those games were not 20 hours long and didn't have a bunch of cheap deaths & swarming enemies around every corner.