Just finished all 4 seasons. Absolutely loved the show itself. Not a prude at all, but I felt there were a bit too many overdone sex scenes and after the first season, I think the viewer would get the idea regarding how bloody the romans were back then and surely did not need to continue to chop off heads, arms and every other body part so visually.
Also, the first Spartacus (sad to hear about him) was a bit more believable and a better actor.
BUT...great story and fun to watch and for the many good points, I was sorry to see it end.