I will try to be as comprehensive and useful as possible and start with what you already know: you die (and sometimes twice a day).
I have not played Souls (famous for its difficulty series) but Bloodborne seduced me and I took on a whim.
This game is not tender and the first minutes are tough. The game does not help you at all. The player is not taken by the hand and it's weird. We often dies, we think to resell it, but eventually the pride away and we end up almost to slaughter enemies easily.
He has this side uncompromising justice.
The graphics are not crazy but the atmosphere and are pleasant discovery.
So real favorite in a game that is more than he seems. He learns to accept defeat, to adapt and to question.
This is a lesson that we must have the humility to follow.
If you are unsure and you have some time, try not.
