After all I have purchased my personal laptop dell vostro 3558 .it is easy to use becoz its keyboard is very soft and also numeric keypad in keyboard.its betry andy working is very good in performance betry is work approx 3 to 4 hourse.dell vostro brand is very amazing and professional series for those who want more safe and excellent laptop.and dell is the largest company so it help me in any query or any problem about the vostro laptop but I have no any problem and complain till to this time about my vostro3558 .such I love it very much.