FiTech EFI-4 600 HP Reviews

Anybody installed the EFI-4 600 HP on anything, likes - dislikes or troubles. Trying to decide on which efi sytem works well and isn't too much trouble to install. Prices seem to be going down, I've seen this one less than $750. Already have tank, pump and fuel pressure regulator installed, just have to run fuel line.
I have run the Holley Sniper for two years and have had no problems with it except one issue from me not setting it up correctly. Maybe I'm one of the lucky ones but I have not had to make any adjustments at all on it. Bolted it on, let it learn, turn learn off and drive it.