I just ordered an iphone 5, what are the best features?

I've never had a smartphone. I just want to know what are all the good things about having an iPhone and what features and apps will benefit me aswell i also a a macbook pro

Well the iPhone in general, benefits the user through out the day! The iPhone 5 is good in some sense because it has a bigger screen ( biggest so far in the iPhones ) fastest processor in the iPhone line and the most detailed screen. It's the lightest, fastest, largest, coolest ( in my point of view) and the most advanced iPhone ever made.
There are over 200, 000 apps available for you in the App Store. They all are very useful and fun to use. The gaming experience on the iPhone is the best anybody could ask for in a smart phone.
Since you have a Mac book Pro, you can connect you iPhone to your MacBook using iCloud - a built in software which allows you to share data among your own devices. If you took a photo in your iPhone, it would automatically transfer it to your MacBook using Wi-Fi or 3G which ever is available.

The iPhone running on the iOS is very very user friendly and it makes everything way much easier.

I like about iphone 5 is it's 3D map but bad in navigation and it's shows wrong, that's why Apple used google maps…

Should have waited, the new iphone 5C and 5S will be out in 36 days