The first negative I've found is that it did not include multiple mounting screws for different setups. While the 6-32 screws holding it to the picatinny mount are the correct pitch for MOS, they are a bit too long. The suggestion was to go to the hardware store for correct length screws, I instead shortened the existing ones with a dremel and sanding drum. Took a few minutes, but for the few cents screws cost, they should have been included. For the $$ I paid, it was worth the effort, but I'd have certainly been disappointed had I paid full price.
Now the positives, It is adjustable from dark to full sunlight bright. I prefer the manual adjustment as I've always found lag in auto adjusting optics as well as issues when shooting from a shaded area towards full sunlight. The +/- buttons are easy to reach with my off hand thumb but will not be hit accidentally. The 3moa dot is crisp and the glass looks good, certainly on par with my holosun. The windage and elevation adjustments are friction resistance not definable clicks, but this shouldn't matter as it's likely to be zeroed once and left alone. This has a top mount battery, so removal is not necessary for battery changes. CR1632 and it was not included. Same as my 407c so I already had a ten year supply of them.