I'm not being argumentative by the way, or at least I'm not intending to be! I know next to nothing about automotive ECUs, but I am really really really sceptical about this wonder box. Sorry
The fact that there's an analogue one that "might work", but if it doesn't you'll be sold the digital one, just shouts rubbish to me. It's either right or it's not, and there shouldn't be any of this placebo talk either ("I can really tell it's faster. I think. I'm sure I can. I think I can anyway. It's definitely doing *something* 'cause the car's nearly stalling", for example) . It just works or it doesn't. The question is: does it raise boost above stock levels?
edit: I see you said it doesn't affect boost. That settles it for me. A waste of money.