All for One: Regime Diabolique is one of those rare games that comes along where the setting, the system, and the vision of the developer all work together to create an exceptional product.
Things to like:
+Very evocative presentation of the concept and setting
+Superlative system (Ubiquity) leading to fast, carefree game play
+High rate of support in the form of both expansions and scenarios at reasonable prices
+Very clean magic system
+Well-developed emphasis on schools of fence
+the pdf toggles between web and printer friendly
Things of which to be wary: (Not much)
-May require some work getting those who know nothing about the works of Dumas or Howard into the intent and atmosphere of the setting
-The freedom and flexibility of Ubiquity may give those used to more rigid systems a steeper learning curve.
-limited examples of spell-design are clear and useful, but less-so for absolute novices
-no example of play (although excellent advice and responsiveness can be found on the Triple Ace forum)
This is a game to love!
[4 of 5 Stars!]