DC2 is still fairly similar with the dungeons (though much less grindy, and far less annoying with running out of water or whatever, from my memory). 2 adds a ton of other things to do though. If you’re tired of grinding dungeons, go fishing, breed your fish for races and events, go golfing, find things to take pictures of for inventing, progress your town for more unlocks, advance NPC quests to add them to your group, etc. 1 is fairly linear with one way to progress. 2 has probably a dozen different activities to progress in, so you can do whatever you want in the moment.