I played HoMM 1-5 a lot. In my opinion this game is easier to get into than for example HoMM 3. The unit stacks solve issues and encourage to have more interesting armies. One of my campaign armies had 6 stacks of Milita and rocked, at the same time my other hero got all the got melee creatures. You have to get used to the spell system, but it works and it is less of a gamble, because you know which spells are when accessible for you. So far I played through the first campaing on normal. Wasn't difficult, but also not too easy. I am looking forward to the next campaign. I bought the game after simultanous turns where announced - that is a must have feature for multiplayer.