I use it with source material in pdf, which means that many times I have to zoom in on designs or columns. The price is good. The build quality is good as well. The laser is good too. The built-in case for the receiver is also nice. The casing has a rubbery feel, doesn't slip, and gives a sense of durability. A big plus is the on/off switch that extends battery life by deactivating the motion sensors. This way, the batteries do not need to be removed when not in use. The mouse function is welcome and more accurate than I expected. Why four stars and not five? I think it has three ergonomic issues. First, the buttons are very close to each other and lack a click feel. This increases typing errors. Second, the required pressure is quite high. For a short presentation, this is not a problem, but if you use it for hours, it tires the thumb. Third and most importantly, the scroll wheel on the side is positioned further back and is more sensitive than it should be. The result is that quite often when I press the laser button, I accidentally activate the scroll wheel, causing me to change pages and then search for which page I was on. This is after using it for 120 hours so far. Some of the issues may improve with use. Presenters with mouse functionality have many buttons and require a good amount of time to get used to. Those who only deal with PowerPoint files might be more satisfied with something simpler and more user-friendly.

Very good in terms of usability, durability, and feel (it doesn't have the feel of a cheap remote control). Its laser is not very powerful, but it is suitable for presentations.