Sony Four is clean, doesn't complain about anything. Used by me since 2015. Very clean, doesn't complain about anything, and everything in it is original. It has one simple problem, which is the disc drive. You have to turn off the Sony and turn it on for the disc to work, and it works fine. It has never complained of heat, never shut down due to heat, and never needed maintenance. Price: 450 Serious buyers please contact via WhatsApp.