Drupal 8 follows modern PHP standards for object-orientated programming which, alone, brings Drupal much closer to the PHP family. I consider this a major improvement from Drupal 7 on the basis it will allow PHP developers to work on Drupal projects easier and understand Drupal practices much faster as well as Drupal developers to work on other PHP platforms with less of a learning curve.
Drupal 8 is a scary new beast which is now over 6 months old.
It could be very unpredictable, another learning curve and a bubble burster for those who have settled down with the hook-based procedural approach. That's if you're a developer of-course; otherwise apart from a shiny new admin experience you may ask what's the fuss?
Our approach to our first Drupal 8 web development project. We found that Drupal 8 is simpler and easier to develop with and here is why.