The good: a larger cast, bigger political drama between the nations, lots of rivalries and antagonists with differing powers, and the always-fun hook of a dungeon crawl RPG-style quest being translated into an ongoing comic form.
The bad: everything, damn near everything, oh my god. Art can be good but isn't exciting, jokes don't land, fights don't have anything fancy, dialogue is stilted, narration is aggravating.
There's some stuff I like here, it's not the worst thing ever, but wow it's got nothing I could point to and go "yeah this is a good reason to read this manga".