I think the board I got is a bit more of an intermediate to advanced board instead of beginner...
I think - can somebody else with more experience confirm - that a more advanced board tends to be stiffer and maybe a bit faster. This makes the board a bit more responsive, but also means that a small mistake is more likely to cause me to bite it (the board is less forgiving).
Not really sure what else separates a beginner board from an intermediate or advanced board. I do know that when I was out this weekend I had a harder time controlling my new board than the rentals I was using before. I fell a few more times and realized that small mistakes were more likely to cause a bigger reaction in the board.
Despite a couple of falls, a bruised wrist and sore tail bone, I had a great time and love the board I got. The responsiveness was awesome and the board was a ton of fun to ride. As I get better I'm guessing that responsiveness will become more important.