I recieved my Blu and JC sample pack the day before yesterday. It took a few hours to break in the atomizers, then it worked ok. Works quite a bit better with the Johnsons Creek. I also ordered the Joye 510 and think it will be much better.
The key to the blu seems to be one short primer drag and then take a longer slow drag for the throat hit. Battery life does suck, but isn't a show stopper. The case does a good job charging the battery. You have to remember the blu is about the size of an analog cig, so the battery is small.
I love my JC sample kit. After you smoke the Java Jolt that comes with the blue, add some expresso from the JC kit and you will be in heaven.