I just received my lens, and it is Winter time here so I have not had any chance to get out and use it for what I intended, Astro/Milky Way photography yet. My first impressions of the lens is that it is solidly built (metal body) and feels nice to hold and use. I like the fact it has an aperture ring and in my basic testing it focuses fast and accurately on my Nikon Z6 II and Z9 bodies. I am a little disappointed it is not fully weather sealed, but at the Holiday sale price I paid (under $300) I can't complain compared to the Nikon Z equivalent at almost three times the cost. Delivery time from Viltrox (from China to the US) was acceptable, but the tracking abilities of the shipment from the shipper (not Fedex, UPS, or USPS) is poor - website basically just listing dates with "Package loaded onto plane at departing airport" and "Package arrived at receiving airport" (no locations identified) and someone in a car delivered it to my house one late evening with no advanced notice of the upcoming delivery.