Allowing iPhone 4S users to make calls, set reminders and find nearby locksmiths via state-of-the-art voice-recognition technology, Siri is certainly the iPhone 4S’ most impressive new feature. But how useful will the personal assistant application be once the novelty wears off, when users are tired of asking Siri to marry them?

“I experimented with the previous iPhones’ Voice Control on numerous occasions, giving up each time. I only found it useful for initiating phone calls while on the road,” writes Scott Stein in a comprehensive review of Siri for CNET. “Siri’s voice recognition is undeniably impressive. Its bag of tricks are clever indeed, and fun to explore in the same way that using the Microsoft Kinect or an advanced chatbot could keep you entertained. Siri is more than either of those, but many current features of Siri often replicate what you could do otherwise with a few simple taps.”

Pushing voice commands to a new level, Siri is one of more than 200 new features included with the iPhone 4S. Although its the clear headliner for Apple’s latest smartphone, Stein says that the company will need to improve Siri to maintain its usefulness.

“I have my doubts as to how revolutionary Siri will really be unless Siri can learn and improve over time,” he continues.