I'll throw myself into the pit as well. Been doing Ecoboost E-tuning for a bit now and have a ton of happy customers and power records with other platforms. Here is a quick look at the results I've had with our completely stock Fiesta ST. The graph below shows stock tune vs Cobb Stage 1 tune, vs Our Stage 1 tune. And just for fun I threw in my E30 tune versus my 93 Stage 1 Tune graph.
And E30 Stage 1 vs 93 Stage 1.
I'll give 50% off the E-tune price in return for some feedback, just drop me a pm if you are interested. Pricing can be found in my signature!