The ones I've seen have been very good (if you like the Gladiator type thing) and not just blood and guts but some of the most riproarious sex I've seen on TV.
it's a really good series.
The 2nd and 3rd series were shown in the reverse order ot how was originally planned as Spartacus (Andy Whitfield) died form cancer and was undergoing treatment as the original 2nd series (that eventually became the 3rd) was being filmed
The new Spartacus in the last series looks pretty much like him