There's a phrase in the guidebook that sticks with me now, having played several ties in different campaign settings: Fantaji doesn't reward roleplaying, it is roleplaying. So many RPGs are like complex board games that pay lip service to roleplaying. Fantaji really lifts the Excel spreadsheet, calculus homework, "just hang on while I look this up" weight off of RPGs and let's the players be creative, direct the game, and create story arcs, both for their characters and their campaigns. It's free-flowing, collaborative, and plot-centered. If you want your game session to feel like a party, this is it.
I'm currently working on my own campaign setting in the system, and I cannot wait to see what happens. As a professional writer, running a game in which story development is the mechanic is supremely exciting.
I started with D&D and went to GURPS, but I doubt I'll ever go back to either. Fantaji is way too fun (and too easy to learn; you learn by doing). Very much worth the purchase if you want something new, or are maybe looking to come back to gaming. It's a personal preference, but I can't recommend it highly enough. Try it out.
[5 of 5 Stars!]