based on ratings from 2 users
combined with 4 pro reviews
The games are quite fun, except that the first one (Prison Break) has a particularly bad puzzle at the end -- probably the worst puzzle in the whole 4-game box -- which is sad because it puts people off the whole set which is otherwise pretty nifty.
The materials are mostly paper/cardboard with an electronic timer/verifier/codesheet gadget. The gadget is cute enough and works OK, though it feels a little cheap. Hints are time-triggered and pretty well designed, but of course may or may not match what you need at any given moment.
The stories are cliche (prison break, virus lab, etc) but capably told, the kit is good quality (for being paper and cardboard), and the illustration is well done.
Recommend 2-4p max. Can be reset as long as you're careful not to mangle anything.