From all the bikes I have ridden, the Easy Motion is a standout. Disclaimer- I picked this brand to sell and opened a store, so I am very familiar with their product AND the Bosch systems too. I am one of the Bosch drive certified people.

The Diamond wave got a software update from last year and now uses the mountain bike firmware. Makes a BIG difference in the way this bike rides. Easy Motion also has a $200 rebate on bikes bought before then end of the year.

You didnt give your location, but I'm in Akron, OH if you need to check out e-bikes.

-SP