It looks cute and I’m a fan of all the silliness. If the reviews are good and it runs well on the original Switch I might consider it :)

1. I assumed that Nintendo was trying to distance itself from Miis. I am aware that you can create and import Miis on the Switch and they are still used in a couple games, for historical reasons, but they are not nearly as prominent as they were on the Wii, Wii U, and 3DS. I wish Nintendo kept using them more. It is always fun to look back at all the Miis of friends and family I collected playing Wii Sports and whatnot.
2. The gameplay seems to be the socialization and customization of Animal Crossing turned up a notch with all the resource collection removed. Like Animal Crossing, you will have to fiddle with your system clock to access the shops you want.
3. Unlike Animal Crossing, your Islanders are not human/animal hybrids, but real people that you model as Miis. That means every time you want a new NPC, you have to find an actual person to base them on, which is discriminatory of people like me who have no friends. Also, it allows the game to create a love triangle between you, your cousin, and your grandma.