Steep, with lots more ups and downs than just heading up Alpine. Windy, with not a lot of car visibility, but then again, not a ton of cars either.
When I ride, I stay with Alpine/Portola. When I drive I take Westridge, to get away from some the small percentage of really unsafe cyclists that tend to swerve at the most inopportune times. Any cyclist on Westridge knows what they are doing, or they end up walking their bikes, it's that challenging.