Maybe if I'd had to wait...
I got this in a Humble Bundle a long time ago, but I waited until all the episodes were released before I bothered trying it. (Silly me, liking finished products 'n' all.)
Having now given it a go (on Steam), I can safely say that letting a couple of months (or years) pass between each chapter is the right way to play it. I tried to do it all at once, and I was bored stiff halfway through.
If you play each chapter one at a time, you'll probably have a series of lovely, surreal set pieces with a central narrative based around the theme of entropy, little boxes of pretty toys to fiddle with while waiting for the next chapter (however long that may have taken).
If you try to play it all at once, you'll get a slow, meandering, *humorless* story that doesn't seem like it even *wants* to go anywhere (and, seeing as the main theme is entropy, that may be the point, but that doesn't mean everyone will enjoy it).
Actual gameplay is minimal: it's a point-and-click that's very light on puzzles. The object of the narrative is to funnel you through the set pieces (which are lovely but, like everything else in this game, completely static). I feel like KRZ really would have shined if it had been in first-person, but it's in third-person and those people are very far away figuratively and literally. (The "characters" look and act like cardboard cutouts.)
I hate reviews where the author's points all boil down to "this isn't a completely different game"; I believe each title should be judged on its own merits. But I can't help thinking of The Stanley Parable and how that game nailed unconventional narrative and surreality without sinking into the depths of rigidity and self-seriousness that KRZ has made a home.
But, then again, maybe it's me: I tried to play it all at once, and it's clear that most of its fans had to wait. So I would say to give each chapter some breathing room; you may enjoy it more than I did.
My three stars are for the superb soundtrack and art design.