I have had these binoculars for about 1 year now and I still bring them basically anywhere I go. I started to get interested in Astronomy last summer and needed an optical instrument that would be easy to use and not very expensive. I went ahead and ordered SkyMaster and loved it from day 1. They are great for both Astronomy use and for day time observing. From looking at distant landscape, contrails of an overhead jet travelling at 35,000 feet or looking at Andromeda galaxy, these binocs bring everything much closer and much brighter than most people would expect. There is always a WOW factor when someone picks it up for the first time. All moving parts, including focuser are smooth and very well made. The only downside that I see is that these are relatively big and heavy binoculars. I would suggest buying a monopod, so your viewing sessions will be longer and more enjoyable. If you don't have monopod or tripod, just find some kind of support for your arms or sit in the reclining chair. Overall, this is top level, highly recommended product. Get more detail about Celestron SkyMaster Giant 15x70 Binoculars with Tripod Adapter.