EFI ECM: which would you choose and why?

One of the potentially easier setups would be a FAST EZ EFI system. They offer them in a multi-port kit that is cheaper than the TBI system, though you have to come up with injectors, so it kind of balances out. You get a computer, harness, and wideband O2 sensor for just a little over $900. It tunes itself, and from what I've heard and read people really like them. I was planning on going that route originally, but had a Megasquirt 2 fall into my lap for a steal. You'd have to keep the distributor setup with the FAST system since the EZ EFI only runs fuel, but it would mean less issues to have to possibly work out during the conversion.