I feel like this app would just make me depressed at my lack of free time. There's nothing like a nice, colorful list of things you "could" be doing to make you feel horrible about yourself when you're in a cubicle on a Saturday morning.
I use tadalist for this (I have my movies list, my books list, my restaurants list, and my travel list there) but I'll admit this looks pretty slick. I'll add it to my apps to try list. ;)
It's great that someone finally made an app focused on personal life things, rather than work or errand to-dos. Awesome.
"A nice girl I met at a party" => add to my "want to-do" list. nice.