never heard or playing this, probably cause i'm not grown with console in my youth. my parent probihited console because waste of money compared multi functional PC.
is the RPG aspect is good? how deep it is compared to elder scroll or skyrim?
Dark Souls 1 and 2 are completely playable on pc, but I'd recommend playing it with a controller either way since it fits the gameplay much better.
I wouldn't really compare it to Skyrim at all. Different types of games. You have some "rpg aspects" in the form of experience levels and stats, which result in different builds that use different types of weapons, spells and armor. This part of the game is pretty deep in that you can plan your character in detail and "roleplay" different types of characters. You also make some small choices that slightly affect things in the game (mainly for getting certain spells or items). Dark Souls 1 was much better in that area, where npc's you met had their own storylines that you could affect.
The story is told through npc's, usually you have to talk to them over and over to get bits and pieces. There's also a lot hidden in item descriptions, and simply in the level design. That's what makes at least Dark Souls 1 genius in my opinion - the game is shock full of lore and storytelling, but very little of it is told directly to you and you will have to explore, read and listen and fit the pieces together yourself. Much of it is also open for interpretation. There's a reason there are hours of lore discussion on YouTube. Dark Souls 2 was much more straight forward in it's story telling, but there's still a lot there to discover and ponder over.
The combat is rather deep and tactical. You can't just hack and slash your way through. You will need to time blocks and parries, dodge attacks and use good positioning. A major part of the games is the challenging combat, which you need to practice and master. Some bosses are relatively easy once you get the hang of them, others are very hard.
Another huge part of the game is the online part. If you really want to get the most out of it, you should stay connected to the servers. That way you can get people to aid you, or help others for rewards, and be invaded by other players when you least expect it. And also read messages from other people, see how they died and see the "ghosts" of their characters here and there throughout the game. It really does a lot for the atmosphere.
I'd suggest watching a little bit of gameplay if you're curios, but don't focus on pvp as that's not a required part of the game and where all the raging no-lifers tend to be. Also, don't watch too much of it and try to stay clear of boss fights. A big part of the beauty of these games is exploring the world and seeing everything for the first time yourself, as well as dying horribly over and over until you learn.