One of my hobbies is birdwatching, I bought these binoculars to replace my old Leitz Trinovid 10x40's (25 years ago the Trinovids were the bee's knees, but optics have moved on a lot since then). Replacing with the equivalent modern Leitz/Leicas would have been a VERY expensive, but would also have given me much heavier binoculars (I do a lot of walking, so weight is important to me). I was able to try a good range of binoculars side-by-side (although it was on a lovely sunny day, so not the best test conditions) and was very happy with the optics and the light weight of the Nikons. The low price was an extremely welcome bonus.
Some binoculars can be tricky to use with spectacles. Having tried these 8x42's, a spectacle-wearing friend of mine was impressed enough to buy a pair for himself.
I've now had them for more than a year and have never regretted buying them. I would recommend these 8x42's to anyone who wants a serious pair of binoculars without having to take out a second mortgage.
Binoculars can be a very personal thing, one size most definitely does not fit all. So, although reading reviews may help you narrow down your choice, there is no substitute for actually comparing different models 'in the field'.