Surprising
I'll admit, I was skeptical right from the start. To be honest, I prefer it when some details are actually written in the description box at the beginning. And then I started watching, and my heart sank further. Circles. Extremely simplistic animation. Things weren't looking hopeful.
But now, looking back with the advantage of hindsight... it was perfect. The simplistic animation suited the overall style of the flash, and the message was delivered well. And people can say what they like about voice acting and lip sync, but it actually wouldn't work as well like that, I think. And even the speed of the story, which was rather slow, served as a good build up to the end message.
So yeah, I know this is the kind of flash that people complain about. People can moan about the lack of fancy animation and sound. But screw them. This was great. Nicely done.