The H scenes are pretty good. The story feels very flimsy. The AIrevolution is a threat but hey spend time with the girls cause they're hot, but then arch enemies once again. Trying to corrupt the MC right from the beginning. The Khoren reveal near the end of this version was pretty good and I appreciated how the MC reacted to it. Also like that the MC is taking care of all the girls that treat him with respect in the FAI playthrough. Haven't played SAI and don't know about any story differences.