The demo was short but good, played it on advanced and expert, that wasnt hard but intense! There no idle time . The news weaps are great ( the ak47 <3 the magnum <33) and the melee weapons are powerfull and fun. So if you falled in love with l4d1 you should buy this, but if you dont liked l4d1 dont buy it , it's exactly the same schema , travel in little map with a lot of zombs. Sorry for my bad english :s i'll be back with some screens