I ordered the 82mm version of this product and here are my initial impressions:Pros:-Packaging is quite nice-Comes with a hard plastic carrying/storage case-Has hard stops for the end ranges of the adjustable ND filter-Threads onto lens nicely (Sony E mount Sigma 24-70mm F2.8)-Built quality is pretty nice-Relatively cheap when compared to other high end variable ND filtersCons:-Will most likely not be able to fit your lens hood over it. I shoot with a Sony a7iii and bought this for my Sigma 24-70mm F2.8 lens and I am unable to fit my lens hood over it (although it fits an 82mm lens thread, the overall widest diameter of the filter is ~89mm or ~3.5 inches)-The filter does come with a hard plastic case, however is not a perfect/tight fit. I usually backpack with my camera and create a lot of movement, so the filter will bounce around in the case. Compare it to my Tiffen Circular Polarizer filer case (see attached image) and you can see that it is a tight fit and will not be bouncing aroundOverall, my initial impression is thatI will update this review on image quality, as I have yet to take the filter out for a test shoot (I will mostly be using this for long exposure landscape photography)