I sat down to play Blue Rooms, but then I figured I might as well do the 'rooms' trilogy in order, so I played this instead.  I've now conquered it, and have two secret rooms remaining somewhere.  It's the first hold by BoyBlue that I've ever finished, so far as I can recall.
This was really nice.  Even nice enough to make me review a hold for the first time in a while.
My favorites:
1S1E and 1S1W: Very creative both to build (on your part) 
and to play (on ours, which is fun).
3N2W: That's crossed my mind, but this is my first time seeing it in a published hold.  Very nice!
1N3W: A different sort of challenge.  I don't think cracked walls have seen enough of their potential.
1S: Very interesting to work out.
3N: Another fun idea.
My least favorites:
Click here to view the secret text
×2N1E, 2W, and 2N.  Those puzzles were too trial&error based for me.
EDIT: Mastered.
____________________________
Penwielder's Palace, 
Detention Complex, 
Archipelago, 
Cube of Memories
[Last edited by Penwielder at 05-01-2011 07:11 PM]