It will take time, but we'll get the accident number averages. If they replicate other similar designs, the new rate will be half or less.
I am impressed by how courteous drivers are. During peak hours I see motorists letting other motorists in, both from the right and turning left from the center lane across oncoming traffic. Those right turns into driveways are quicker too, as motorists can swing wider to turn and use part of the bike lane to exit traffic. Through motorist are using the center lane and barely slow.  Sure, like ALL streets with bike lanes on the right, there is a chance for a collision. But studies show that motorists and cyclists learn to expect each others actions. 
Despite dire warnings, motorists are also using the center lane to pass buses. These aspects are keeping travel times down. Having driven it 9 times during rush hours, only once was it over the expected 30 seconds additional. 
It's not perfect, but it's better.