So far the roguelike dungeon is sort of underwhelming. I'm playing on Challenging difficulty so that might be too low, but I'm at Floor 12 (character level 8) and have been able to breeze through it all without many issues. My party so far is a Two-Weapon Fighter, a Crossbow Rogue, a Smilodon Druid, a Cold Evocation Sorcerer, and I just added a Bard. Not sure what to make my 6th character once I have enough gold, I have four frontliners now and all the spell utility I need so maybe another archer.