I haven't got round to beating him yet actually, despite this being my favourite game of the series. Just like I haven't beaten the horrors of Frigid Outskirts.
This run though, definitely happening. Absolutely. Would never get overwhelmed and just start a new run on another Soulslike...
Hmmm I hadn't thought about it really but now I am to be fair I really should finish off the ER DLC. Only done one boss and I can't even remember what they're called as this was all just after it was released. How I've gone this long without doing it all is a mystery to me, it's not like I wasn't enjoying it