I've been using personal computers since I built my own in 1980. I bought this from Apple directly, though it is Apple Refurbished.The Big Sur operating system on this hardware is extremely slow.There are other issues -- for example, non-OSX drives no longer show on a desktop. All in all, I'd say Apple is trying to wean users from spending too much time online, by making the experience as unpleasant as it can (joke).All that said -- when a jpeg or tiff file does decide to load, the color and detail on this monitor is amazingly good.