Yeah, those three are great. Pyramid is okay, The Turn of a Friendly Card is definitely good. I think I always liked I, Robot best because it's so easy to maintain a mental narrative with that album. APP was one of those bands that habitually held one of their most evocative songs for the album-closer, a practice that I am a pronounced sucker for.
Can't really comment on the post EinS 80's albums because I haven't listened to them. Usually heard disparaging things from comparative fan comments.