Both of you: it's just something to install, don't worry.
I've started playing with it. It's amazing. Every little improvement got me like "OMG I LOVE IT", like "oh, it can be resized", "oh it displays instantly when clicking Draw portals", "oh the lights can be customized"... everything. It's like being a child at Christmas when you open all of your presents and scream "whooaaaa".