Dexter is my favourite TV show. I love the themes, the photography, the script, the humour, the character, the story. I also love the soundtrack, which I listened to a lot (along with the Mr Brooks OST). I finished this about a month after starting, because I lost my motive (which happens once in a while).
(Edit for 2013 – since the shittier later seasons, especially the devastatingly awful Season 8, I don’t really care much for Dexter anymore. Breaking Bad, True Detective and The Wire are much better shows. My sudden loss of motive half way through was a bad sign of what would happen to the writers of the show!)