It's the first time since 2007 that iOS have decided to redesign completely it's Software. The new iOS seems to have a much better design and a much more colourful and 'bubbly' OS. Some icons have now been 'texted' rather than using symbols, and there there are loads of animations which makes it seem to be like Android 4.3. In fact, some comments from Websites show how people are seeing the new iOS as too similar to Android, making it a step lower than its competitor.
But enough with opinions. Here's a proper review: