I've been making my way through Mini Mario and Friends Amiibo Challenge and I find it to be pretty enjoyable so far. I love the variety of the mechanics of the themed worlds and that each character has a unique ability. It does freshen up the typical Mario vs Donkey Kong style gameplay. My only real quibble is that it's not ideal for on the go play, as you obviously need certain amiibo to access certain levels. I played Tipping Stars on my 3DS quite a bit during my lunch breaks when that game came out, but I can't really do that with this one. That said, it hasn't stopped me from having a good time with the game.
However, if the Mario vs Donkey Kong games aren't your cup of tea, despite the new wrinkles to the formula this won't likely change your mind. It's also certainly not worth buying a bunch of Mario related amiibo just to play this game. But if you're like me and already own all they amiibo this is a fun, free way to get some more use out of them.