Saw the entire series as it was rolling out and I had some issues with the reliance on extreme violence in order to communicate the action, nevertheless, I always looked forwards the Thursdays when it new episodes rolled out.
I really hoped that the second season would be coming along but then, the main star was diagnosed with a life threatening disease so, I guess those 10-12 episodes will be the end of it.
Some of my favorite episodes are the one where Spartacus was lead to an underground fighting culture. Quite brutal, historically not necessarily accurate, enjoyable beyond its description.