I ordered this model and have found that there are dead spots on the display. I brought it to repair, where now the display is changed. In the store I have encountered someone of his Thinkpad also brought in for repair, as it came to his testimony at large temperature fluctuations to a display jump. Apart from the broken display, -Was the battery life of 6 hours for a day at the university just enough for me. -The Power is sufficient for normal work fine. -The General concept of the instrument very well liked more More I can not say right now.