I have got this lenovo T43p laptop for official use from my company and have used it for 3 years. During this period I had never faced any major issue.
I have faced minor crash but guess its mostly because of windows and not laptop hardware. What I like most about this laptop was top led light which help to use laptop even in low light condition. It was top class development machine perfect for professional work. thought I have noticed that extensive use it emit hot air from fan area and it is almost unbearable to put on lap during those times.
Its has nice full keyboard and tack point and track pad. I am great fan for track point and I have used other laptop and its track point I found IBM has most comfortable tack point design.
I has finger print sensor for easy login, onboard wifi support, bluetooth card, 2 GB ram, 50 GB, inter centrio mobile cpu. Truly great machine to work on.