The computer itself was delivered well packaged and is in very good to excellent condition.  I have no issues with the machine.  The mouse and keyboard included were throw in the lake generic but worked adequately.  I have my own Apple keyboard and mouse as I was upgrading to a more modern computer. However, the offering is advertised as shipping with Mojave.  It did not - it had been “upgraded” to Catalina.  Most comments here are from those who were eager to move to the latest OS. I however require Mojave to run “legacy” 32 bit apps, most notably iTunes and iBooks Author.  Mojave is the last OS to be able to run these - Catalina and later will only run 64 bit apps leaving behind a large population of older apps that users such as myself find useful. Fortunately, this machine was indeed the advertised model, which was shipped with Mojave and is also the last Mac capable of running Mojave.  Basically, all newer machines shipped with Catalina or later cannot be “downgraded” to run Mojave. So, I was able to rather simply but with major time expenditures restore the machine to its Mojave “factory” settings.  Unfortunately, for those migrating from older system to Mojave, the base applications installed with the Mojave OS did not include major applications available at the time but are no longer available in the App Store at all or in versions that will run on Mojave - including Pages, GarageBand and iMovie. iTunes Producer is also no longer available.  The versions of Pages and iMovie from my old system still ran, but upgrades to these and to useable versions of GarageBand, iTunes Producer and others I had to acquire from various third party sources on the internet.  To summarize, I did this because my iTunes and iBooks Author apps would no longer update to the network, my old Mac being obsoleted and unable to be upgraded.  Mojave is the last OS and this machine the last computer that will give these and other legacy apps continued life. As for the speed of this unit, any operations that are file system intensive are slow.  Other than that, it’s capably fast and outperforms my old machine significantly.