So my question is - for those who have had both HillRom and Respirtech - which do you like better? I have read some of Amy's blogs about the vest - Do I understand that Dr Warwick recommends the Respirtech one better? Since my insurance is still denying the vest I want to make sure and get the best one if I'm able to. I would hate to switch after HillRom has been fighting insurance so long though. Just curious as to what some other people feel about which one is more productive. My son doesn't really cough anything up yet.