All I can say is Wow. I was turned on to these by a fellow guide. I have been saving for a pair of Swarovski 10x42EL's for the past year, my buddy let me try his Mavens and I was Immediately Sold. These give 99.8% of the quality of the Swarovski, Leica, or Zeiss top-of-the-line optics at 1/3 the price.
We did a Side by side with these at on mule deer bucks at dusk at 1100 yards with the Swaro NL Pure 12x vs these. You could see slightly more detail in shadow with the NL's but it was neglagable. You could still see the detail you needed with both.
My only complaint is that these binos are longer than I was expecting, but you get used to it pretty quick. I am actually considering getting the 12x's as well because the glass quality is so good, and I am still $600 cheaper than what I would have spent on a pair of Swaro's. These have let me hunt hard and gives me the quality I need. I am now trying to figure out how to sell my vortex spotter so I can add a Maven spotter to my arsenal as well. You will not find a better quality for value on the market.