It come with a few glitches: Some plugins are not compatible with Blue Ocean, causing a white-page-of-death. However I found there where already issues created for them, i just turned off the plugin.
But the biggest downer, is that blue ocean is just a small UI on viewing pipelines. Its not a replacement for jenkins. And you still need the normal jenkins UI. Which doesn't handle pipelines well.
I think its still very much a beta project.
You can follow progress here https://issues.jenkins-ci.org/browse/JENKINS-39647