Fitech

Holley has released the software. You can run the Sniper with MSD ignition or do as I am doing and using the included coil driver which allows timing control without any external ignition boxes. (I'm using a MSD distributor on my big block). And I believe you can "tune" using the sd card thru the handheld now that the software is available free thru Holley support. The interface cable to directly tie into the Sniper from computer isn't available yet. Another plus to the Holley is the fuel fittings into the unit are lower making it easier to run a drop base air cleaner.

Tech Resources
I would also recommend if you have questions to call Johnny at Pace Performance. Site sponsor and helpful. He's who I bought mine thru. They sell both Holley and FiTech.
I also agree the support from my research seems to be better with Holley.