It IS really good and "worth the price":
I do have more and more problems with different sources and I have no idea where the problems are.
Often, VDH seems not to be working, but it is possibly working in the background. I even get error messages, but if I wait I might just find that it did work. Problem with that is, I get no information, and if I close FF or shut down I might be killing several downloads in progress. But, like right now, if I sit here and wait for the 2 remaining downloads to finish, I might find that these 2 really had errors. I blame most of this on Mozilla.....