This is a good expansion to the orginal Warcraft because it adds way more then Starcraft (2 units to each race and like 6 maps haha it was funny). The Expansion adds 2 new units to each race, one new building to each race, one hero to each race, tavern heroes cooler maps, cooler music, and even cooler gameplay. Blizzard never failed me yet and this is another great addition to the PC collection. If you know me I may not be strong single player guy but the story is so compelling that you may just feel like cheating through the levels just to see how it will unfold. Of course BNet online is still good as the orginal just as long as your not with newbs (that totally screw your record). I guess in the end it's very addicting and I would give it a 9 out of 10. Keep up the work Blizzard.