Just awful.  None of the ports charge.  Since I got it whenever the battery got low I needed to keep changing ports with the charger so that randomly after 6 or 7 tries one of the ports started charging.  There are four ports.  It's crazy.  Unfortunately, last night the battery ran out and now the computer simply won't charge as I cannot randomly try each different port any more.  Very disappointed.  Thank God I bought that service plan.