Pros: computer arrived without any damage.Booted right up without problem.It has been on for about two weeks (burn in test).Con: it was advertised as having a 500 Gb SSD, but it came with a 256 Gb SSDI gave it 4 stars because a second storage device was included: it came with a 2Tb, 3.5in (mechanical) hard drive. It seems to be working fine, but only time will tell.