I know I said the difficulty was easier than expected, but that kind of changed after reaching about halfway into the game.
The game starts getting really brutal when you're at the part where you're supposed to defeat the 4 Soul Lords.
The fights themselves are hard enough, but the way to each one is pretty dangerous, also add to that that none of the bosses have a Bonfire that's really close to them, even the closest ones have about a few minutes of dashing through enemies to reach each time you die.
The fights were difinitely the most fun I've had playing this and DS though, each one has a different feel to it and you have to strategize accordingly for every one.
The final boss though, that's where the real fun was, imagine fighting a combination of False King and Flamelurker. And the music went really well with it as well.
I'm not sure about the details yet, but it seems I got the bad ending, you end up being consumed by the flames after you link them.
There was a boss that I missed unfortunately and it seems that that's the reason I got the bad ending, I guess you have to defeat all the bosses in the game to get the good ending.