I just got these, so my impressions are severely limited so far, but it depends what your are expecting out of the glass. If you are looking for Leica level, nope, but then we are talking an entirely different price point here. But if you are expecting what you would get out of a sig 3k or a Viper HD, so far, that appears to be where these fall. Much more testing to do, really just casual observances so far, but I am pretty sure that's where the glass is going to fall considering what I know about how these are put together and their price point.
Both Sig and Vortex have placed themselves in this particular category when it comes to cost, and therefore optical performance. They both have higher level glass that they could offer, but then the price would push it out of what most people can afford and what they feel they need in ters of optical performance....plus then they'd probably find themselves pushing up against the big 3 pricewise, and most people would probably jump up to one of those if they are that close already. So they are really pursuing a different market segment and have spec'd that glass accordingly, the formula appears to be to supply a high functioning RF at the glass price point that is widely popular in terms of price/performance balance. That Viper HD level optic seems to be where the market bell-curve apexes, so that's where they have focused their efforts.
But yeah, if you are looking for something that outperforms the Vipers optically, I don't think these will be for you. Personally, I am impressed with these new offerings considering the price point, but I do love my alpha glass....I am just not in that tax bracket when you add in the RF portion!