I am not a fan of diceless systems. I like the random element and the joy of rolling dice. For me diceless systems remove something that I consider to be part of the joy of RPGs.
That being said I am sold on Active Exploits. It is diceless and it weighs in at a whole 72 pages, it is a great game.
Any style, genre or scope of gaming can be covered in these very simple rules. It reminds me a bit of Fate.
What I like about this game is it truly seems to be universal. While the focus seems to be action, I could not think of anything you couldn't do with it. There is a assumption of modern games, doing fantasy or sci-fi might take a bit more work.
The mechanic is rather simple and would work great with the right players.
If you and your group are more into "Role" playing than "Roll" playing then you certainly can't go wrong with this.
I would also grab this as helpful guide on how to resolve action without always going to the dice. In this respect it is a great read for any gamer or game master.
[5 of 5 Stars!]