(EDIT: Just recognised the figure in your avatar so I guess you're probably not a total newcomer to this kind of game like I assumed lol, but whatevs)
I thought I'd have no interest in Bloodborne. Didn't like RPGs, didn't like super challenging games, just basically ignored it for a while. When I eventually tried it, it took me a while to even realise I liked it but it's now my favourite game of all time. And the exact same thing happened to
@Alien Substance.
I'd write out a big ass post about why it's so good and/or why you should play it, but it's late so I'll just say give it a try, and make sure you go in having already accepted that you're going to die a million times, and death is just part of the game. If I hadn't already gone in prepared to take every death as a learning experience I'm not sure how far I would've gotten.
The difficulty can feel completely overwhelming at first, but if you just stay persistent you'll inevitably get through it. Things you found super challenging early on won't mean shit to you after more experience. This one early game boss used to drive me up the wall, gave me insane trouble, now I can beat it in one try every time (because of this, NG+ is usually significantly easier/quicker for most people). A lot of the difficulty is just about repetition - enemy attacks are often very slow and telegraphed because you're supposed to start to recognise patterns and grow accustomed to the hostile environment around you over time. If enemies in Souls games actually had good AI they'd be impossible to beat.
And even if you're still having difficulty after a long time, there are co-op/AI partners to help you out, which are totally fine to use for your first playthrough no matter what some people might say. Just try and use them sparingly if you have to at all, because the high you get after beating a boss that's been smashing you for like an hour in these games is unreal.
There is replay value as you can try out different character builds, weapons and whatnot, although Dark Souls has more of that as BB is a little more streamlined. There's also various different endings, although the lore/story might be lost on you unless you really make an effort to understand it. I don't usually care about this kind of stuff but it ended up being completely fascinating to me once I actually started to take notice.
Some of the best/most infamous bosses are in the DLC, and in general it actually adds a significant amount of high-quality content (probably at least an extra 9 hours?) unlike most expansions for other games, so yeah, get that.
Huh, guess I did type out a big ass post.