Ahhh this is my favourite game! I've owned it for a few years now and I'll have off periods where I don't play it, but I always come back and I love it. Once you get past the main awkward tutorially bits, it's a lot of fun. There's quite a bit you can customize which is where a lot of the charm comes from, for me! I like to change up paths, outfits, and flower placements every now and then.
If you like collecting things this game is also really great for that! I'm such a hoarder, but the game lets me be that way! Plus catching the new bugs, fish, underwater creatures, and getting new paintings is fun. For me, anyways.
As you play you unlock new things to build which add to the towns charm and you'll find new furniture pieces to complete sets and all that, it is a slow game though if you don't time travel. The negatives to time traveling is missing or new villagers (newbies can be a con if you're big on plot resetting), flowers dying, weeds appearing, and if you have turnips they go bad automatically. Plus the possibility you'll miss different events.
Playing with friends/trading communities are also a big part of the fun, for me anyways! I like collecting new things, ergo trading being fun
And playing games with friends or even just seeing what their town layout looks like is fun!
I hope you have fun with the game! I know it doesn't click with everybody, but I find that when you can get into it you really enjoy yourself. ^o^