The unit works really well except for a hum while in operation.  This could be the fan which is always on in the computer, which is a bit noisy.  It functions well but with all the turbo, fast processor, and extended memory, it operates like any other computer.  The apparent speed is not noticeable.  It's a great computer using Windows 10.  I do recommend it.  I trust it will serve me well for a few years.