Just purchased the refurbished Apple 2020 iMac with Retina 5K Display (27-inch, 8GB RAM, 512GB SSD Storage) which was sold not by Amazon, but by 6th Avenue Electronics in New Jersey. Although next day Amazon Prime delivery was not available since it was sold by a seller outside Amazon's control, the shipment was received within 48 hours and a signature was required by FedEx. Although the package was not an original Apple box, the shipping container used by 6th Avenue Electronics was very secure.  The computer itself was EXACTLY as described and except for some very minor scratches, the computer looked brand new. The computer also came with new original Magic keyboard, Magic mouse2 and USB cable. Additionally, the computer came with the original Apple one year limited warranty with the option to purchase Applecare within 60 days of purchase. Although I have only used this computer for a week, every function operates smoothly without any difficulty. The only suggestion I can provide in order to improve the performance of this computer is to purchase a  Timetec 32GB KIT(2x16GB) Compatible for Apple DDR4 2666MHz / 2667MHz for Mid 2020 iMac (20,1/20,2) / Mid 2019 iMac (19,1) 27-inch w/Retina 5K, Late 2018 Mac Mini (8,1) PC4-21333 /PC4-21300 MAC RAM additional ram for under $55 from Amazon which significantly improves performance, https://www.amazon.com/dp/B07MH3KHLY?ref=ppx_yo2ov_dt_b_product_details&th=1. Installation of the additional ram is VERY simple via the rear open port. Suggestion - There are four ram spots. Place the original 4GB x2 already in your system in slot # 1 and slot # 2 and add the additional 2x16GB in slot # 3 and slot # 4. Ram slot # 1 is the top slot.  I am very satisfied with my purchase and honestly suggest that anyone interested in purchasing a refurbished iMac for less than half the cost of a new system, seriously consider the purchase of this particular system and from this particular reseller.