If you’ve scored yourself an iPhone 4s, chances are you’ve become acquainted with Siri. But if our new female friend all she’s cracked up to be? Here are the details.

Siri is a personal assistant that will help you get things done on your iPhone… all you have to do is ask. She will help you send messages, create meetings, make phone calls, get directions, and pretty much do whatever you need.

There are a lot of perks to Siri. First, she understands your natural speech, so you don’t have to use awkward language or codes. She also is geared to ask you more questions if you haven’t provided enough info.

Developed from the processing power of the dual-core A5 chip in iPhone 4S, Siri uses 3G and Wi-Fi networks for rapid communication to Apple’s data centers, so she can just as rapidly give you your answer.

To talk to Siri, just hold down the Home button on your iPhone 4S. You’ll hear two short beeps and see “What can I help you with?” on the screen. Begin speaking: the microphone lights up to let you know it is working. Siri waits until you’re done, but you can also tap the microphone to let her know.

After you’re done, she displays what you said (with accuracy) and either asks more questions or completes the task. She uses information that comes from your calendars, reminders, contacts, and music, so she can easily perform your task based on what you already have in that. You can ask her to make a call, find directions, look for groceries, schedule a meeting, and more.

Siri also works with a lot of the apps that are built-in to the iPhone 4S. Right now, she can function easily in English, French, and German, with additional languages, including Japanese, Chinese, Korean, Italian, and Spanish, on the way later this year.

But there is a bit of a downfall.

Siri is data-hungry, and its hard to keep her satisfied. Because she searches for content from the web and has a regular connections with Apple servers, it continually eats up your data.

Extra data use often equals extra fees.

So though the novelty is great, and can be convenient at specific times (like if you’re driving home on a long commute, or lost in a random city, you might want to keep Siri in the off mode.

Siri is currently in beta, anyway, so hopefully this is an area they’ll look into.