I voted "did not like" mostly because of the Aquatter thing. There were already several animals that people needed to breed to complete steps and I think asking for a rare critter wasn't right. I was lucky with the other animals as I already had some to feed and/or bred them quickly. Pretty sure if I hadn't gem-skipped breeding the Aquatter I would not have finished.
My only other complaint is the auto start. I want to be able to work with my schedule when I'll have more time to keep up with a game. Sometimes playing all weekend works better for me, sometimes weekdays are better, depends on the week. Ya know, that whole work thing gets in the way sometimes.
Overall I liked the event and the Fluffingo and the Drizzly Bear is adorable, the frog is kind of creepy though.