I'm surprised it started up. When it arrived it was BOILING hot. It arrived in my town at 8:30am on a Saturday morning and sat inside a boiling hot truck for 3 days until it was finally delivered Monday evening. Extremely disappointed that this item was shipped ground with no regard for the extreme temperatures, since computers should be kept at much lower temperatures in order to function properly.First issue was, after it located my wifi network,  it would not connect.  Eventually after restarting, it connected. Then, upon discovering an update was available,  I received a very disturbing message saying I could not update the app due to a "refund " or because it was already "purchased under a different apple id".  Immediately I felt the brand new computer I ordered was, in fact, not brand new. I called apple and a rep shared my screen and helped get it squared away. Basically, if that happens to you, you need to delete the apps that need to be updated and reinstall them.The monitor has a nice picture on it. There is a lot for me to get used to, I haven't owned an imac in 25 years.UPDATE:  6/16/22: It's almost been one year since I ordered my iMac. I'm typing on it right now.  I wanted to add one update to my review.  The computer makes a LOT of noise when running!  It is now almost summer again, and I don't recall hearing this kind of racket during the winter, so I'm thinking the computer can not handle any amount of heat. That's the only thing I can think of as far as why it is making such a loud racket while running. There's not much I can do about the temperature, even with a/c on, it's still going to be hot inside, as we live in the desert. I will be shutting it down every night until winter comes.