When we test gear, we look beyond the specifications listed by manufacturers to compare a product with its competitors. Each product has both quantitative and qualitative attributes that require testing--some which are not clearly apparent and others that are difficult to measure. "Squishiness" and "clickyness" aren't the most scientific of terms. Popular Mechanics posted this great exploration into the measurable attributes of keyboard feel. Attributes like travel and snap are clearly important, but there's also discoverability, pitch, and dish of the keys.