We use the Hillrom vest and not really sure if we like it. The vest itself tends to get almost over filled and starts creeping up wich then causes the vest to get to tight around his arms which in turn causes his arms to go to sleep. We have been sized twice so I don't think it's a matter of it being to big. I think that's just the way it is. One thing with insurance though is our previous insurance company had a max out of pocket expense for equiptment $1500, and they WOULD NOT budge. We've recently switched so we may be trying the Resirtech. Those who have used it, do you have problems with the vest riding up?