I am using a T440P from Lenovo for over 8 months now. Its a bad laptop with awesome specifications. It has a 12 GB ram and is a super workhorse. it does not make any noise. The battery life is awesome it has 7 hours battery life.
The mousepad is hard to use.The speakers are quite loud and there is no need for external speakers. The zoom feature expands the image very much and the letters are quite big when it zooms.