Help: Izip VS Bosch system bike (Felt) VS Raleigh E Bike

[ACG]

Hello!
I'm 6ft 180Lbs and commute about 30 miles round trip (many hills) 3-4x per week. I'm looking for an e-bike that will be durable, ideally can go to the 28 mph (though 20 would be fine), and is enjoyable to ride in eco-mode. I've found some good deals on IZip, but have been told by a dealer that components and durability of that motor/battery system is poor after 1-2 years. I've been told that Bosch systems are the best, though quite a bit more expensive.
Any opinions from users who aren't dealers? feedback from IZip long-term users would be especially welcome or Bosch system users.

Thanks!

 

[grench]

https://electricbikereview.com/foru...ed-to-bosch-yamaha-and-steps.4212/#post-59190

https://electricbikereview.com/foru...-fs-enduro-27-5-video-review.4686/#post-61821

https://electricbikereview.com/forums/threads/bulls-outlaw-e45-green-mover.4997/#post-58068

Another couple of durable bikes to consider. The Bulls are hard to beat measuring components.