You maybe one of the only people that found it enjoyable but a bit average...
Personally I thought it was a poor game.
It looked graphically dated at release, I played it twice all the way through and then just lost interest.
You have to complete a level in a session or else the whole level respawns.
Multiplayer doesn't really add much, Blizzard couldn't even make the weather do the same thing on two screens in multiplayer mode.
I found the whole D2 experience to be all hype and what was eventually delivered was average at best.
Rumours of D3 - can only hope they make a better job of that one, if it ever sees the light of day.