I love it as a vacation destination.
I put in a restaurant, a spa, edited the lounge, ice skating rink, and added a bunch of sims to the area.
With that and skiing, hiking, and mountain climbing, I am enjoying sending my sims there. I have an idea for what I want to put on the summit of Mount Komorebi. I hope it turns out like I imagine it.
I am not having issues with lag or crashing.
Despite all this, it does still feel like a game pack, since it feels like it covers some existing pack features.
I wish the world had one more district. All the new worlds are too small.