I wanted to play D&D growing up, but there was no one to play with. When I heard about this game, I rushed out to buy the Player's Guide and DM Guide, selected what race and class I wanted to play, and even worked on Skill and Feat progression a little.
I should not have put that much time into my planning. As other reviewers have said, some races,classes, skills, and feats were left out. There are no prestige classes (yet), so feat and skill progressions aren't as important as I thought.
I find the "ranks" and "Actions Points" to be annoying. Why didn't they just use the standard level progression and set the max lvl higher? And they aren't always useful anyway. I find that I waste at least 1 AP per level because the enhancements I have are better than the ones I can trade for.
Finally, grouping. I am shy by nature and it took a while before I was comfortable inviting people to join me or asking if I can join them. Also, the group you are in can affect how much fun the dungeon is. If your group mates just want to run through and beat the monsters and you want to search for hidden rooms (r if you have a problem with the controls and fall off a bridge while running), there is a problem.