I'm very fond of the beginning of The Settlers series till 4 and after 5 I've left to greener pastures since it didn't had the feel that settlers previously had. With this installment however, they brought back the magic and playfulness of Settlers. Although I would seriously be impressed by GOG if they tried to contact bluebyte and kinda... get the expansion packs that where only in german (mainly the vikings one) and never had a chance to play. Hope is small but I'll keep hoping. Anyway BUY THIS GAME!
I still have my old Settlers II CD, but I'm tempted to buy it on GOG. Lately I found out that there is an unofficial expansion pack made by fans that lets you play online with absolutely no problem and have gigantic resolutions on the modern screens (supports HD!). It's called Return to the Roots, a critical unoffical addon for Settlers II: Gold Edtion from GoG.com
