I am always wary of Professional Products stuff. They made their business by copying existing manifolds, etc. and having them cast in China. That does not mean this system doesn't work, just that I won't buy anything from them out of principle.
I also am very leary of a company that made its name copying products. That is a pretty cheesy way to do things and it makes you aware of the mind set of the management. They bought a running system in Retrotec, but I have a hard time looking past their knocking off products.
I talked with these guys at SEMA -- for maybe an hour.... the two in the booth were actually pretty knowledgeable -- and were quite "convincing" with their pitch. BUT - BIG butt... their real sales pitch is all about PRICE...
If price is your 'thing' = then this might be for you... but it isn't going on anything I own. There's probably also a good reason you don't see it anywhere else either... and I don't think that is just "momentum". You're going to drop a couple grand -- and let's say one system is 2195 and the other brand is 2495 -- My thinking is it's the FIRST 2 GRAND that is the expensive part and I'm not gambling with the last couple of hundred.
With regard to the powerjection 3 the feature list is definatly greater than the FAST unit and its made in the USA. As far as the copy cat post FAST is the one ripping off the idea. Why pay more for less? I can understand the protest on the manifolds but the EFI is just plain better. I have tuned almost every system on the market and this is by far the easiest EFI on the out there. I am putting 750 at the wheels with one of these.(twin turbo 438W)Believe what you want about the company but you are selling yourself short overlooking this product.