I purchased this laptop back in June/July of 2019 when it was on sale.  Up until a week ago it was working well.  My only issue previously was one of the fans had made some noise, so a few months ago when it began I popped-off the back covering & compressed-air cleaned it best I could.  It cleared-up the fan noise & just like I previously stated all was well until last week.  I was playing a game, screen froze, the laptop made a single tone for about a second then died.  When I turned it back on it said "No Bootable Device".  According to the computer tech I took it to apparently the controller chip when kaput on the Kingston 256G M.2 & the proprietary Aero-Blade fan is going out too with a ball-bearing(s) making sounds.  I contacted Acer & they estimated charging me $579.99 for a not even a year & 1/2 old laptop & charging almost 60% of what the laptop initially cost me.  I see now why Acer cut-down their warranty from 2 years in 2018 to 1 year for 2019.  Is it possible I got a "lemon" asolutely, but I cannot recommend Acer after this experience.  A laptop shouldn't have such catastrophic problems this soon.