As the series exists for quite some time you'll inevitably catch up something about it when engaging in the anime community.
About the feeling the show evoked – it was generally very entertaining and so over-the-top that it balanced between ridiculous and dreadful so that it kept up your mood on a overly pleasant level.
SPOILERS
It was much more unpredictable (at least at the beginning) that I'd thought.
Somehow when thinking about Another, before starting the show, Misaki Mei was etched in my mind to be this evil girl that's the killer of the show. At the end she was one of the only sincere characters in the show and one of my favorites. I really cared about the main characters and feared that they'd die. Though I found it a pity that all of the mains had plot-armor though the show wanted to state that no one is save. Barely any characters that you actually knew died (except of Akazawa, Reiko and Kazami), but maybe that was the intention of this show, keeping up a more positive mood in the audience.
I really liked the psychological aspect of fear and deceiving in the characters of this anime. They where fearing for their lives and thus acting amoral, like real people would do.
The Ending was one of the most well-rounded endings I've ever seen in anime. Loved it.