I love it. I just got the Island to the third tier for all of the effects, and I love that my sim can impact the environment in that way. It's kind of similar to Strangeville's storyline, except it doesn't really guide you through it (which I thought was fun, as I had to explore a lot more). I'm still trying to figure out the events on the mainland, so far I've had a cultural bonfire/bbq, a fishing event (with a vendor to make seafood dishes out of your fresh catch) and the turtle hatching event. I've heard there are more, so I moved my sims to the mainland (Ohan'Ali Town) to try to catch them, b/c they don't give a notice that they're happening (except the turtle event). I just noticed that they give a buff from participating that boosts happiness for 1-2 hours ("Part of the Community).
https://i.imgur.com/QzsCGWV.png
https://i.imgur.com/BzVVazt.png
https://i.imgur.com/xXmLE6y.png
I'm still digging into the content. I love my sim's modified jetski (blaring summer strut with light effects and handlebar streamers) and her dolphin bff helps manage the social need a lot easier. I'm still getting used to the increased "community" mechanics, with people randomly coming by with food and whatnot, which seems a lot more frequent and diverse than in other worlds (with exception to city living).
https://i.imgur.com/bArZyC2.png
https://i.imgur.com/PhD20zl.png
I still want to try an off the grid scenario, and set up a caldera base camp for that purpose.. I just haven't gotten to that yet. :D
https://i.imgur.com/vocmZqq.png
https://i.imgur.com/UuCpkh1.png
https://i.imgur.com/2nFn1jU.png
I literally don't want to visit any other worlds right now.