The number of options available to the player as GM are incredible. Not only do you sign and trade players, but you can lose your job, get re-hired, gain reputation, lose it, or try to work two jobs at once (such as running the Oilers and the Canadian Olympic team).
Baseball fans may be notorious for their love of esoteric statistics, but this is just as true for all sports fans. NHL EHM definitely delivers on this level, with career stats for players that go back to their days in the minors.
Although far from being completely accurate, and scoring seems to be tied to 2003-2004 levels rather than the new and improved 2005-2006 season, the game does an excellent job of simulating the capabilities of teams.
The manual is good for its size, but it should be much bigger. It fails to explain anything but the basics about any given concept – good luck finding a resource that suggests the best way to beat a team using the neutral zone trap, for example.
It’s not poor, just shy of being able to handle the monumental task at hand. For example, when deciding what each coach will teach in practice, it’d be really handy to see all their stats at once – too bad, you have to click them individually, memorize their best categories, go back, and compare – by hand.