I wanted a light, story-driven ruleset for a Star Wars oneshot with some friends that had never done tabletop RPGs before. This worked wonderfully! The rules are the good kind of simple: easy to learn and remember, but leave a lot of room for creativity. The free Star Wars addendum worked out well too, and I'd love to try the others (Matrix, pirates, LEGO, etc.).

Pros:

• Keeps the fun parts of RP'ing and story-telling, without the cumbersome rules, stats, and books.
• Really easy to explain and play
• Could easily be adapted to any story-driven genre
• Great for one-shots and zero-prep stories
• Easy to GM (no dice rolling or complicated rules), though you need to think on your feet
• Pay-what-you-want business model

Cons (well, more like intentional limitations):

• No leveling system for extended campaigns. Characters can gain/lose traits/skills/equipment, which is reasonable for story-telling, but may not be as satisfying as "hitting epic level". Just set expectations for your players.
• The dice numbering is a little confusing, but you can easily play with "high is good, low is bad". You'll see what I mean.