The biggest problem was that it didn't have physical buttons above the trackpoint - they very virtual. For trackpoint only users it's unusable, because we often have the thumb on the button for dragging, double clicking etc. Often we have even both thumbs on the buttons. And the virtual buttons didn't work on Linux.

The keyboard was utterly broken (I guess it was the keyboard electronics or firmware), because combination of some three keys didn't work - I remember that RightCtrl + AltGr + H, didn't work, I use this kind of combinations with Virtualbox.

Additionally I have chosen a screen that was reflecting so working more than half an hour made the head hurt. And on their web-site there was no indication which screen had anti-glare.

I guess there were more things that I disliked, but I don't remember any more. Sent it back and bought a used T430s that served me very well.