you reckon they ruined it with epic?
Epic (3rd ed) itself was a clever, smooth running system. However space marine (2nd ed) was a system that was absolutly steeped in special rules for units. (orks especially so) While that could make it a bit daunting to learn, it is also what made it such a cool and richly detailed game.
Not only was the change to epic a radically different system, (much, much, more so than any of the changes that have taken place in the edition changes with WHFB or 40k) in the name of making a faster playing game they abstracted, and outright dropped the vast majority of the special unit rules.
I basically hated it because it felt like changing from eating your favourate, flavor filled, chocolate chip loaded icecream, to eating plain vanilla.
One of the reasons I'm going to make a space marine army as a loaner (aside from the fact I have them sitting in a box, waiting to be painted ) is that while they were a very good force, they were not quite as special rule heavy as some of the other forces. Basically they were a bit more straight forward to learn with.