Having to make a choice of party members & having to stick with them through an entire adventure is a deal breaker - seriously??
I thought you were d&d fans - well a good number anyway - choose a character, join a party, go-adventuring & become godlike or die trying....that’s the way it works ain’t it?

On a more serious note - this game very much sounds like something you’ll want to experience multiple times - I should even try Kanisatha’s melee only war party at some point !