I finally got the Platinum today.
My first play through took me about 13 hours and I played as Solomon most of the time and used the Hallowed sword.
My second play through I used Harros and the Hallowed sword and I collected all the items and lore. This also took me about 13 hours. I preferred playing Solomon, but since I know the game better Harros wasn't an issue at all.
My third play through was shell-less and it took me about 6 hours to complete. I struggled the most on Tarsus second phase, until I completely changed my tactics and it was easy (hard to explain, but I just didn't over think it and went very aggressive on him without relenting and he went down easy).
I did have a crazy thing happen during my shell-less run, at some point during the fight with The Unchained I couldn't use my L1 + R1 attack at all, it's as if the L1 button was being ignored. So I let the big fish take me home, but when I arrived in fallgrim I appeared at the beginning area after the tutorial area! And I had no items, and everything was reset! So in a panic I downloaded my last save from the cloud, which put me all the way back at the Crucix Twiceborn boss. So I had to beat him again, and work my way back to The Unchained. :(
Speaking of that weird glitch, I have had two full on blue screen crashes with this game before. I also had a glitch where after beating Crucix, the entire level was reset and I got stuck behind the big wall you normally open up early on that level.
All in all, this game has issues, but I really liked playing it and I love the atmosphere, art, music, etc. I can't wait to see what the team can do moving forward, either with DLC or a full sequel.