Summary: The design idea is indeed brilliant. However, it doesn't do its job well as a mouse. I'm not sure if it's just mine, but the mouse is way too loose. Whenever I put my fingers on it, I very often end up pressing the button unconsciously, especially the right click.
Summary: My Nano v550 must just be faulty, but I've heard many others express the same frustration, and that is that the mouse often does not connect, is not detected by the wireless receiver, even though all other checks show no problem. The clip idea is interesting, but in execution it's only so-so, in part because who likes to have a big black nipple on the case of your laptop?
Summary: I bought this mouse for travel to go along with a netbook but found it 33% heavier than a microsoft mouse I bought three years ago. I like the very small USB interface but the mouse itself is too heavy.
Summary: Bought on Amazon, good price and new feature to attach the mouse to the laptop, however, the shape of this mouse make it unusable for me. I am so used to the shapes like VX, V220, or HP or MS, so I can't not get used to this one and it force my arm to raise up and feel tired.