I picked up the PDF versions a while ago - printed and played. I enjoyed them so much I came back for a POD version.
The cards are really easy to use - for each piece of information, flip a new card and take the corresponding value.
I got this originally to use to help plan my 1shots and online campaign. I've since incorporated them into some solo play, and even have played just using the cards to resolve everything. I've found them useful as a supplement to my dice and oracle and inspiration charts, and I've found them useful to drive everything off the cards. Very handy - very flexible, and neither way feels like it is too litte/too much. This is very much a flexible tool that can fill different niches for different games/sessions/playstyles.
The base deck is an easy recommend and will fit in to a large variety of games. Also check out the ALONe rules for more ideas on how to use the cards, and look at ways to graft it to your other tools or ruleset.
[5 of 5 Stars!]