If you're a fan of other Paradox titles such as EU3 and Crusader Kings, you should consider buying EU Rome. It combines much of the same mechanics as EU3, with the in-depth character management of Crusader Kings. The former makes for some interesting gameplay in an era when Rome and Carthage struggled for control of the Mediterranean, Egypt and the Seleucids struggled for control over the fragments of Alexander's empire, and much of Europe was still open for colonization. The latter element makes internal politics much more important. In republics, such as Rome and Carthage, one most balance competing factions, each with their own aims, wants, and allegiances, and assign characters to key positions such as censorships, quaestorships, and high priesthood. In addition, each character has his or her own character traits, which provide specific bonuses (and handicaps). Even if you play as a monarchy, you will have to keep your magistrates loyal and happy, fulfilling their often competing aims and using their abilities to secure and expand your domain.

The expansion, Vae Victus, included in the Gold edition of the game, adds a bit of polish to the original game. (I haven't played the original, only the gold - but judging from the forums, VV was a significant improvement.) Nevertheless, the game could use a bit more polish. It is hopeful, however, that Paradox might do something in the future. Recently, Paradox conducted a poll in their online forums, asking which of their games they should improve next. EU3 received the most votes - which led to the Divine Wind expansion - but EU Rome earned second place (in a race of four or five games), with a proposed expansion focusing on Alexander's conquests. Maybe Paradox will yet respond to the community's desire to revamp the game. (I hope they do, as it is a great game with much unharnessed potential.)

Overall, I think if you like EU3 and Crusader Kings, you should consider buying this game. Even if you just love ancient history, it might be worth buying. Don't expect a game like Rome: Total War, however, as there is less micromanagement (e.g., no battle map, no great array of units or buildings, etc.). This is a game of deep macromanagement.