Siri, Y U No Understand Me? [INFOGRAPHIC]

Siri is a loyal mistress, following you wherever you go — but is she a good listener?

Since the iPhone 4S began coming standard with Siri last October, the voice activated personal assistant has become a cultural phenomenon. Samuel L. Jackson and Zooey Deschanel star in Siri-themed ads for the phone. A creepy iPhone case forces you to interact with Siri. A different project enables Siri to destroy your phone if it’s lost or stolen, and a viral video shows what happens when Siri goes psycho.

But everyone’s not impressed. In March, a man filed suit against Apple, alleging that Siri “does not perform as advertised.” Anecdotally, many others have complained that Siri doesn’t respond to voice commands and questions as hyped.

Given the controversy, Internet education portal OnlineDegrees.com rounded up a number of studies and statistics from sources including The Wall Street Journal, ABC News and others over the past several months to produce the infographic below. Among the findings: 87% of iPhone 4S owners use Siri at least once per month, with just over half describing themselves as “satisfied” with her performance. Another 9% say they’re not satisfied, while 36% say they’re somewhere between happy and unhappy.

Only two-thirds of users, however, employ Siri for anything beyond searching the web, making a phone call or sending a text. At least 30% of users say they would never use Siri to schedule a metting, play music or even send an email, while just a quarter use Siri to send emails on a daily basis.

Check out the infographic below for more on how iPhone owners do — and don’t — use Siri. Then let us know in the comments — do you think Siri really works?