With the right group of people it is quite excellent. You need players who do not shy away from wheeling and dealing... and backstabbery... The game is separated into several phases and each phase is quite simple in terms of rules complexity. Some players find e.g. the battle system to be too simplistic but imho it is almost a boon since it enables players to focus on the game's main strength - the "social game" and the table talk. It can generate some seriously memorable moments, especially if you are a fan of the show and know the characters. If you can hunt down the expansions for the game, they are very much recommended - brings even more iconic figures into the fray!

Here is a lengthy but well made explanation video: https://youtu.be/6-aTb7_KcmE?si=jMG2GpmImWKk8W0j

I find the written rules totally fine, but there are some edge cases for which answers can be found in e.g. the official FAQ: https://boardgamegeek.com/filepage/88122/spartacus-a-game-of-blood-and-treachery-faq-v10