Years and years ago I tuned a bit on a few of these systems, none of them were on an FE, but that doesn't really matter. The FI don't care what make or model engine its on.
I thought they were a pretty well rounded system. Back then they had a simple hand held user interface, it may have had an auto tune function that cost extra, but I already had a WB-O2 for tuning so never spent the extra money on it.
The hand held tuner was a bit clunky, as was the tuning you could do with it, but it worked. Back then i was pretty heavy into the Megasquirt system, and the MegaSquirt gave you a lot more control over the fuel and spark than the Edelbrock. With the edelbrock you could make changes to regions of the fuel and spark maps, but not pinpoint areas of the maps. This can be a blessing and a curse though, plus side is it will run pretty much out of the box, and with any reasonable street cam i think its perfectly fine. On the negative side, with a wild cam you might not be able to optimize the tune with the regional map alterations.
That was way back then.... I'm guessing that they have improved things, I see they offer a tuning app, this could, and should be far superior to the old hand held. It also looks like they include a WB-O2 sensor, so it can (and should) be able to tune itself.
For $1800 it is a pretty good deal i think.... the manifold alone costs $765. It would be a much better deal if it included the fuel pump.
Only real chink i see is that they opted to use a victor manifold, I think for 90% of the applications, a Performer RPM based manifold would have been a better choice.
*edit--
Not sure you could piece one together for cheaper..... ~$400 for the TB, $765 for the manifold, ~$260+ for the injectors, ~$150 for the fuel rails
puts you around $1600, even if you built your own controller and wiring harness your going to be well above the $1800 they are asking.
I was unaware they had lowered the price on these, glad they did.