I refuse to use it until absolutely mandatory. I can't remember if it was flight OPS or ALPA that sent out an email this month with the stat that about 5000 pilots had used the new system. To me the tone of the email was like they'd won some kind of victory and the program is awesome, just look how many people are using it... I thought about giving it a try but I really like the PBS desktop application. I won't touch the new program until the old one is 100% dead.