Canon Speedlite 470EX-AI (REVOLUTION or evolution?)

Revolution in the world of outbreaks or evolution?
What do you say ???
I bought it here: www.fotomost.co...
AI - Intelligent Auto System
AI Bounce with fully automatic mode, AI Bounce with semi-automatic mode
Guide number 47 m
Coverage angle 24-105 mm
14mm lens coverage via adapter
Remote flash optical
Dot matrix LCD
Dimensions (W x H x D), mm: 74.6 x 130.4 x 105.1
Weight (without batteries), in grams: 385 g
Automatically adjust flash coverage to fit image sensor size / Yes
EE-TTL II / E-TTL Auto Exposure Control
Manual mode / power fractions - 1 / 1-1 / 128
Manual steps 1/3 steps
AF type backlight Infrared / strobe flash
4 AA batteries
User functions 10 (24 options) + 9 personal functions
Compatible Accessories SBA-E4 Reflector Adapter, OC-E3 Remote Pad Cable, EX-Series Speedlite or Optical Transmitter Camera
Canon Speedlite 470EX-AI