Hegemony Gold is a game with three refined scenarios, all of them fun to play if you liked the demo, even though there's not much more to it in the sense of gameplay elements (the demo DOES go to the fight with Bardylis, right? the gameplay elements are all explained there). It opens up after that a lot, making scripted battles very much inexistent (even though military states like Thebes or Sparta can pack quite a punch too even if they only use the AI's standard defensive strategy, obliterating 5 phalanx units + hypaspists in one go e.g.) in favor of giving you freedom to expand into any area of your liking. The hegemony objectives are much rather a guide than which quests you need to fulfill to "truly win", but if you are using the standard difficulty of the game (even on expert - that does only make raids more frequent and containing more units, but in practice just more annoying) it isn't really a challenge any more for most of the time. The start is difficult (less so in the Philipp scenario perhaps), but after that you don't have that much challenge and can just blob until you reach the next large enemy.
That said the quests are really entertaining, the background info is always appreciated, the game in general handles smoothly and there are no obscure mechanics or rules. Also, the AI doesn't cheat at all, if you don't count in that they always know where they can raid most effectively.
So, all in all, a nice game to play if you are interested in Greece, map painting, enslaving all your enemies or building up an empire most effectively, but while the game is intuitive and not very difficult most of the time, it also doesn't challenge you to master it like Europa universalis, Dark Souls or similar games do, so a lack of complexity or difficulty shouldn't be a problem for you to enjoy this game.
I was currently rather turned off by Rome because there were three consecutive bugs, two of which did not show up in others' games, but even though it isn't as refined as Gold it still made me go back to it three times, which I wouldn't have done with most other games, because there's still the good game idea and the (perhaps still somewhat buggy) gameplay elements that make you love the game.
And last but not least you probably enjoy that game better which is set in the more interesting time period. The storytelling makes up a large part of the scenario immersion. I like both Philip and Caesar, but probably not everybody does.