The bits between the levels...not so much. Just frustrating trying to work out what arrow I need to click to get to another level. Kept accidentally finding myself in the same level again. I just don't care about which meta-path to take, just give me the next level.
Also...those weird inter-level screens where you click or use arrows while the figures move glacially slow across the screen? ARGH. I lost patience after 30 seconds. So. Slow. And no way to skip it. And when I clicked the wrong thing I had to start over.
The actual levels were good though.