I was thinking of purchasing the Kensington Notebook Stand with USB Hub. Has anyone used this? I would use it with my macbook pro. I'm just wondering whether my macbook pro will actually open up far enough for me to use it with the stand lol. As you can see from this picture, the laptop has to be opened pretty wide. Also, the description says that it helps improve air circulation around the laptop. Does it really? I mean, to me it looks like your sandwiching the laptop and therefore even decreasing circulation over the top of the unit.