My personal experience with riding in 'contraflow' bike lanes is they are often very handy, but can get unpleasant where they intersect with car (or even bike)

My personal experience with riding in 'contraflow' bike lanes is they are often very handy, but can get unpleasant where they intersect with car (or even bike) traffic that's flowing normally. I'd generally rather ride in a protected bike lane (with a curb/berm between the car lanes and the bike, or even bigger barriers like planters or parked cars).