Overall once you get your head around it, it's actually shockingly effective. Being able to adjust what weight the arm will respond to means everything you put on it should work with the right setting. It's very sturdy with a nice reach, and has made laptop use on a couch much more comfortable. While you can type and use a mouse fine with it, I find using an external wireless keyboard/TouchPad added even more comfort. The only cons I'd give it is that the mounting adjust for holding the laptop in place could look a bit more elegant. The instructions aren't great either, it just happens to be mostly intuitive to install if you've ever mounted anything at all.