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...
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.
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.
Summary: I removed the trackball, by twisting the tb housing COUNTERCLOCKWISE, then I rolled the trackball in 400 grit, that's four hundred grit, sandpaper. I rolled it like I was trying to warm up my hands, until the tb had very fine scoring over the entire surface (< 20 seconds) then I replaced the tb, and...
Pros: small, works, xp saw it with no big installation. 1 star until mod, 4 stars so far now. it works great, post mod.
Cons: trackball *sucked* did not track. The tb is too slick, see other thoughts for my fix, ymmv.
Summary: The other reviewer complained about the trackball. You're not supposed to use this as your primary keyboard and mouse. It's compact and portable so its use is going to be a little awkward.
Pros: This is perfect for carrying to headless systems. Bring along a 15" LCD and you're ready to go.
Cons: Keys are a bit too stiff. It's difficult to be certain you pressed the keys down when you're not watching the screen. The layout takes a little getting used to as the backslash key "\" is undersized and other keys were moved. Why is there only one CTRL key but two Windows menu keys?