I've been using various telescopes and binoculars of various shapes and sizes for years but I wanted something that was small enough to just stick in my pocket. I had tried a small set of folding binoculars but I always had to sync-focus them every time you took them out, rather taking away from the convenience element, they were also still rather bulky for the pocket.
This monocular solves all that by providing a very compact and high quality optic in something not much bigger than a tube of smarties. I've just read the other review, saying it's hard to focus the monocular. Let me re-assure you it could not be simpler to focus, just twist the focusser at the eyepiece until the image is sharp - dead easy. The images are clear and very crisp, especially considering the 25mm aperture.
At this price, it's an absolute bargain.