I was shown a pair of these at one of the Essex Wildlife visitor centres and couldn't believe the price or performance. Apparently they sell a great many of these to youngsters and newbies who want something better than those tiny travel binoculars but don't want a ton weight round their necks (or a massive bill).
I didn't buy a pair, as I'm still trying to wear out a pair of similarly sized Opticrons bought in Essex Gun circa 1980. I use them for inspecting buildings and they get knocked about a fair bit, so the Oregons with their plastic casings should prove a worthy replacement in due course.
I also use Opticron Verano 8x30 and Leica Trinovids of similar size (much heavier). I've also tried Johnny Kingdom's 10x42 Swarovskis - excellent optics and very light but look at the price.