Hello, I need a laptop cooler, but I can't decide which one to buy. I'm buying it from a local store so the options may be limited (so give more than one option) and it shouldn't cost that much. I was thinking about the Cooler Master NotePal Ergostand 2 and the Cooler Master NotePal U3 but I can't decide which one to choose. Also, from the U3, is the Plus version of it better?