Emergency 4 is an exciting and funny game despite some technical problems. Gameplay is its strong point: it's really involving to see that your decisions make a difference between the life or death of dozens of people. Definitely a good game to buy.
Emergency 4 brings variety to the strategy genre and will please those tired of the usual war or management games. It's true it has some flaws and maybe it is more focused to the more experienced players, but anyway it's quite an interesting proposal.