I like it how you can drive the jeep/fly the helicopter and can actually see everything up close! But interaction options as a guest is something I don't need since I'm happy enough with the role of managing the park and likely being busy enough with that to make sure everything plays out or cleaning up my own mess.
I don't want to be a dinosaur however haha. no offence, but that just doesn't appeal to me for this game or any other game for that matter. I want the dinosaurs to go about their way and just see what happens.
The only way I would likely play as a guest would be by visiting someon else's park. That would be really cool though!