It seems solid so far just make sure the Power Options are set to High Performance rather than Battery Saving otherwise the machine will be laggy, 4k videos will stutter (as with one other reviewer) and your mouse will skip at times. Almost returned it for this annoyance - thankfully I found the cause.EDIT: This thing is actually a POS. The optane memory is a total fail because it runs once every time you boot up causing the whole system to lag annoyingly. STAY AWAY FROM THIS! I'm stuck with it now because I'm out of the return window. Its going up on ebay folks!