I had the E550 before this one and it’s almost double in capacity for less weight.
The new features are very handy. Faster charging rate, Bluetooth/wi-fi access, more precise consumption and time to charge indication… I love it.
The only thing missing is a timer to shut the whole unit off completely. Let’s say, you’re watching tv and you fall asleep. You would want the internet router, tv and Apple TV to shut down all at once. There is a bit of energy to save in 5-6 hours of useless consuming.
Otherwise it’s a good unit for my needs.