Summary: I use this in a server rack, on a shelf and it has worked out great for years now. Small enough to fit where I needed it, and not having to have a mouse is great. Worked with my KVM switch also... great product!
Summary: From the moment I took it out of the box, the trackball was awful. It felt like there was sand in it. It doesn't "track" cleanly. And though it felt otherwise solid, the keyboard failed after owning it for a while... Save your money, I'm sure you can find a compact (yet) equally lousy keyboard for a lot less.
Summary: Be aware... this keyboard has no scroll wheel/function. The product description does not indicate a scroll wheel is included on the keyboard and I incorrectly assumed there was a scroll function. However, the company could have stated there was no scroll wheel/function to make it clear about the features of this particular product. But suspect that if the scroll feature info was included no-one would buy this product....except by mistake.
Summary: I don't know if I got a bad keyboard, or what, but the trackball was worthless, and I got this keyboard specifically to have a compact USB keyboard with a pointing device. I will probably try one with a touchpad next.