The quality of the keyboard cannot be overstated, both the size and the physical feedback is perfect. The 50G is a lot larger than the 15C which fits easily in

The quality of the keyboard cannot be overstated, both the size and the physical feedback is perfect. The 50G is a lot larger than the 15C which fits easily into a normal pocket. The 15C is like an Apple product: it has the needed functionality and wastes no space or keys on fancy flashy fluff you're never going to use: "Perfection is achieved ... when there is nothing left to take away". Programming it is very intuitive, "getting" the 15C is the best indicator I had in high school for figuring out who understood math and who just carbon copied the teacher.