Yeah, the other characters are fine (unless you want to experiment), but Shadowheart is kinda tragic in her base setup. At the very least changing her Cleric subclass is recommended, and refocusing her stats to be less... stupid.
I'm not saying you need to minmax everything, it's just her in particular is not great by default.
Okay, I rolled a 14. What's that mean?
Hsu
That you're a cheater. This is a 12-sided die.
Chan