Personally, I find that their keyboards are the best thing about them. Although, I hear the latest models aren't following the same design. They are also very solid compared to other laptops.
Intel I7 860 @ 2.8Ghz - CM Hyper 212+ - Asus P7P55D Pro - HIS Radeon HD 5850 - WD Caviar 160&320 GB - Samsung SH-S223B - CM 690 MidTower - CM 700 SilentPro
Reply to era86
Excellent keyboards, very sturdy build, reliability and customer support, and a wide range of options to choose from. They're probably the best-built PC laptops you'll find.
This applies to almost all Thinkpads, even since Lenovo bought the product line from IBM.