Apple IMac has always been my computer. This is my 4th or 5th. Before this one from 2017 I had a 2011, a 2004 and a 1999. I was pleased to find this one packed in its original box with all the styrofoam intact, so it arrived in clean, undamaged condition from California. It's an upgrade and everything works. After migration, there were some incompatibilities with my data. I used MacKeeper and Zoom diagnostics for tecs to remotely correct these incompatibilities. Everything now works perfectly and faster than ever. Thanks. I may need another in a couple of years.