As I mentioned in the Souls thread my copy arrived today so had a few hours on it tonight. Really enjoying it so far. Since you’re playing as a specific character rather than an unknown undead the story seems more traditionally told than before with proper cut scenes.
The game doesn’t try and hide any of its systems, in fact it goes out of its way to explain the various combat techniques. Even during the loading screens, there are lots of tips on how to play rather than the usual lore filled item descriptions. There is even a teacher you can train with to practice who you meet as soon as the game starts properly.
In terms of stealth, it’s sort of optional. I’ve been using it to clear places safely but I’m sure once you have the mechanics down going in all swords blazing is a valid approach - from how it seems so far anyway. Also the stealth involves more using the grappling hook to zip around the tops of buildings before jumping down and skewering someone before they’ve seen you, not so much creeping around although there is that too.
Both the things I’ve spoilered you may have seen in previews and you will find out basically once you finish the tutorial but better to be safe for those going in blind.