Anyone else using MegaSquirt on a LA motor?

Autolearning kits are just that; You install, They learn..., and leave the user fairly in the dark of what really happens 'under the hood'.
Perhaps great for the 'I just want to drive (to the sat.night meet and pull out the lawnchair)' folks, but anyone who likes to tinker with their engine tune and get more/most out of it should like to explore new grounds/learn new ways of improving the old.

The self learning kits are for a lot more then just driving to the local cruise that's for sure. The FAST kit I have some experience with tells you what's going on under the hood via little screen that plugs in. Can tell violent temp, a/f ratio and adjust the same. Talks ya where the position of the iac and s few other things I know I'm forgetting.

Like I said I've heard good things about MS set ups. The site is very confusing for me. They say it's easy to set up but personally I don't know. Never seen one in person. I do know a few guys running fast set ups that love them and have seen huge improvements everywhere with it