Agree with VisD. It wasn't intuitive for me. This "double" lock opening and the arrangement to be made around gave me to think. I found it really interesting and enjoyable.
I didn't find the right path as unintuitive as the other reviews, nor did I find as many false paths (1 very obviously wrong 2 off, 1 4 off). While this wasn't too hard overall it does require some intricate thinking about where some blocks should end up...reminds me of Closet Space!
I found 2 different 2offs, for now. Will keep trying. Very interesting.Edit (8 hours later) I finally got it. Not very sure, what I did different. anyhow, it's a GREAT level, IMO.