Seriously it is about two minutes to set up, including reading the ‘ReadMe’ – don’t worry about any red error messages you get, these vanish once you have followed the instructions.
The demo scene is a great way to start off to see the potential fun you could have with this asset. You’ll want to quickly get your own scene going and that should be very easy too, there’s a solid instructions PDF and lots of prefabs to get you going.
I’m using Unity 5_2_3 on iOS and Durovis Dive 2.1.5 and all works fine, just built to an iPhone 6+ and it works really well.
What I love about assets like this is the amount of time and effort you save yourself by leveraging already tried and tested code, at the asking price it’s a no brainer for me.