I am uisng T520 as my work computer, used also wife's brand new T14 and honestly besides the thickness of the body the experience was underwhelming, there is pretty much zero reason for me to upgrade to newer much more expensive Thinkpad which will save me what maybe <5% of my time by being hardly any faster at anything I do. Now she got some new company Macbook and man that's one horrendous keyboard and lack of connectors, I think you cant even plug there regular USB (A) key.