There are a whole load of monoculars on the market at the moment all at a similar price point. The Runprism is an excellent piece of kit which I would recommend.I really could not get the phone attachment to attach properly. There are no instructions to suggest how you are supposed to do that and it comes with a flimsy tripod thing and a plastic phone holder. I did not get the monocular for that so I am not too bothered.That aside, this is a superb bit of kit. I wanted to look at birds, the moon and generally the surroundings. The focus dial is at the top so you can hold it in your dominant hand and focus easily one handed with your index finger. I wear glasses so you look straight through. If you don't have glasses, you can turn the eyepiece which telescopes out a little to make your view more full. The lenses are of good quality and all the optics seem to have an antireflective coating which is great.It is lightweight but sturdy. The objective lens cover is attached so you can't lose it. The eyepiece lens-cover is not attached so you could easily lose it - a bit of a design fault. It comes with a strap and I have attached the eyepiece lenscap to the strap hole so that is problem solved.The resolution is great. I was on holiday in Devon until yesterday. Great for looking at surrounding wildlife. Craters on the moon are clearly visible. I am really pleased with it.For a £30 price tag, I think you are getting excellent value for money. Recommended