My son needed a more robust laptop for college to replace an Acer Aspire 15 laptop purchased new but kept having problems with components, flimsy case, and big disappointment. The Dell Latitude E7450 is a commercial grade laptop built to a much higher standard with a rugged case & hinges. The Dell Latitude E7450 selected was sold by a 3rd party seller, "Blazing Prices". They first sent a different Dell model that had lower specifications & older manufacture date than the E7450 ordered. This was exchanged for a 2nd computer that exceeded the specifications for the one ordered with 16 GB RAM instead of 8, and 500 GB SSD instead of 256 GB.  The case & screen were like brand new.Research paid off in only searching for Dell Latitude models manufactured less than 3 years old. When the first one was shipped and specifications compared, it only took a minute to determine we were sent the wrong one, and a return was needed. We may have just gotten lucky with the 2nd one. All this took a few days longer but well worth it when you compare the value paid for the Dell laptop received.  I would give it 5 stars but only got 4 stars because of the hassle in returning the first one. We now have a great laptop that exceeds expectations.