I think the 5s has everything going for it. The camera is phenomenal, not only in the way it produces great images, but with the Slo-Mo video and the ten frames per second burst rate. Pair that with the way the iPhone renders images for the final output image, I think it's the best phone camera in it's class. The True Tone flash does a nice job of creating good colour in photos and even videos shot using the light.
There are some technical aspects of the 5s that are very appealing too. It's the first 64 bit cell phone in existence, the A7 chip is dual core at 1.3 GHz (almost as fast as a desktop PC!), and the M7 co-processor takes a lot of the weight off of the A7's shoulders for things like pedometer apps, etc. The thing is lightning fast.
The Touch ID sensor is excellent and just got faster and more responsive with the 7.1.1 update that came out today. I haven't had any issues with Touch ID since I bought my phone.
To make a long story short, in my opinion, the iPhone 5s is everything Apple says it is at
Apple (Canada) - iPhone 5s