I know this seems already known fact, but 4xLP reissues is certainly better to take than original 3xLP. Packaging is pretty much the same. Just repress has one more LP of stuff.
What comes to the overall quality and level of interesting tracks, it's basically questions whether listener generally like Steinklang artists releases. I find many bands too clean, too electronics (in negative sense), and out of multiple LP set, I think good tracks could have fitted to 1 or 2 LP's easily. So lots of "average" tracks there. But for those who like such style a lot, I consider possibility that they'll enjoy it all the way.