This was a good purchase. It arrived with Mac OS 12, which seemed to run a bit sluggish. I got on some online Mac groups, and read that this particular 2019 model, with a hard drive, had come with OS 10.13, and would run OS 12 or 13 slowly. I was tempted to downgrade the OS back to 10.13, but then a friend recommended I ditch the HD and have it replaced with a solid state drive. I did, for the price of $220 at a local shop, and it was money well spent. It runs like a racecar now, and I'm really happy with it.It arrived in excellent condition, and seemed like a new computer. Other than the OS issue, I'm very pleased. There's a reason the price of these 2019 models is hundreds cheaper than the later 2021 models, and it's the difference between a hard drive and a solid state drive. Had I known more, I think I would have spent a several hundred more for a 2021 solid state drive iMac, but live and learn. In any case, I have about $630 invested in this now, and it runs like a dream, with very fast load and run times. If speed is important, go with the 2021 models, or spend a little extra and convert one of these 2019 models into a speed demon with a fairly inexpensive upgrade.