1. Placed on a table, it works like a mouse anything but ergonomic. For against my grandchildren (7 years) like the small format.
2. Held in hand, it allows to forward / backward a page or photo in the programs provide. Very good for a presentation.
Once we understood the limitations and the only one uses for what he's done, that's good.
There is no space provided to attach the USB receiver, so easy to lose. I found a good solution: Take a USB adapter plug female double. You have everything in one: Cube, Cube USB wire, the intermediate tap and receiver. Nothing is lost. But Logitech could have thought of something like that.