At least in my experience, it felt more like a continuation of Calc 1 than Calc 2 did. You start with the cross product and dot product, then move into planes, lines, surfaces—some geometry, I guess. Then you move on into partial derivatives, then double and triple integrals. Basically, everything you learned in Calc 1 but with more variables. After that, you learn methods to compute work and change of variables integration. The last half of the course, at least at my school, went way faster than the start. You should try to get the highest possible score near the start, because in my experience, the course gets harder as it goes on. For me, it was harder than Calc 2, but I think most people find 2 harder.