To be clear, the filmmakers shot no footage, nor did they record any voiceovers. Other than some performance clips, it is really the fans telling their own story. Over 2,000 fans around the world submitted their own video testimonials, not counting the thousands more whose stories did not make the cut (if you search "Springsteen & I" on YouTube, there are millions of results).

How you actually like the film depends on a) your definition of the term "documentary" and b) how much you appreciate Springsteen and the devotion he gets from his fans. That level of devotion can sometimes inspire eye-rolls from non-believers, and director Baillie Walsh gives a non-fan some airtime in the film as well (having been dragged to Springsteen shows by his significant other, he laughably asks Springsteen to make his concerts shorter). Walsh himself has said he isn't a fan, and the film probably benefits from his more objective eye.