Considering that the number of people riding on 2nd Avenue has doubled or tripled and the accident rate has plummeted, I think most people biking there feel a lot safer now that it has re-opened. There are explicit signals now that separate car turns from bike turns and pedestrian crossings. While people disobey or miss signals no matter what form of transportation they use, the vast majority do follow the signs. When I review my helmet cam videos I've noticed that in protected bike lanes I rarely have to turn my head to watch for overtaking cars (there aren't any). That lets me focus on what's happening up ahead. When riding with mixed traffic I'm usually either stopped in a traffic jam among impatient drivers or I'm wondering what could be flying up behind me. I can also take my time in the 2nd Ave protected lane and still get across town quite quickly at 10mph instead of feeling like I have to keep up with traffic Road Warrior style. More protected bike lanes please.