Pico works because it isn't trying to be Killington. It sits right there in the same orbit, close enough that the comparison is unavoidable, but the day feels completely different. You get real vertical, real fall-line skiing, and a lodge rhythm that feels more like Vermont before every weekend became a logistics exercise.
The mountain is easy to understand in a good way. You go up, you ski down, and most of the best runs fall naturally back into the same basic rhythm. That makes Pico especially good for confident intermediates and advanced skiers who don't need six peaks to have a good day.
The limitation is scale. If you need endless terrain, a huge village scene, or a full destination weekend, Pico will feel smaller by lunch. But for a clean ski day, especially when Killington is getting hammered by demand, smaller is the feature.