Logitech MX900 Keyboard Mouse Combo

AWESOME keyboard and mouse! (Any type-o's in this review are due to my fat fingers and not the keyboard ;) Probably unlike most reading this review, I have this combo running on a Linux (Centos 6.6) machine (which I believe has a Tyan motherboard, fwiw). I was a little concerned having read some of the other reviews. Not that it wouldn't work eventually, but that I would have to hunt down a script or scripts in order to get it to work smoothly. In particular, it looked like people were able to get the first device working but getting the Unifying Receiver to find the second device (the mouse) was not working out of the box. This was not the case at all with me. Half thinking it wasn't going to work, I shut down my machine, plugged the Unifying Receiver and restarted. It worked! Period. Both devices were identified and functional. The speaker volume was controlled by the volume keys. The F8 key put my system into sleep mode (hibernate) which is exactly what I want it to do while I'm asleep or at work. I probably don't use all of the features of the mouse but the left, right, forward, and back buttons work. I haven't found anything yet that uses the "application" button. I'm not actually sure what it is supposed to do. Is it supposed to let me switch between apps like the F4 key? It doesn't appear to do that. Then again I haven't totally figured out the F4 key's use either. That appears to let me switch between the app I'm using and I guess the previous one that had focus? Meh. I should be able to zoom by just using the mouse and a mouse button combination but that is not working for me out of the box. Instead, I zoom in and out using the scroll wheel while holding down the control key. I'm guessing I could load some software to get the zoom working with just the mouse but I just don't have a problem using the CTL key. The panning by scroll wheel also worked as expected though. I was already using a wireless keyboard/mouse combination (Microsoft) and it took all of 10 seconds to realize the Logitech hardware was light years ahead of that cheap feeling thing. It feels more solid. The keyboard is ultra smooth, ultra quiet, and just makes typing a breeze. I wanted an illuminated keyboard because I tend to use it at night and don't like a lot of ambient light in the room. Even if the Microsoft keyboard were backlit (whch it was not) the text on the Function keys was far too small. This keyboard has larger, backlit text and is great. I keep the keyboard on the desk, the wireless aspect is mainly important to me for the mouse but it's still welcome for the keyboard. If I wanted a wireless keyboard for using on my lap I would think one with a mouse pad might be more tempting than removing my hand to grab a mouse on the desktop. It's not a cheap combo but you get what you pay for in this case. The fact that it just plain works out of the box with Linux is fantastic. Hopefully it will last!