As @pxpaulx said, Haibike low step bikes are not that visually different. If it helps, I am 29" inseam as well and the low step 44cm Trekking fits me fine. It is the XDuro Trekking S RX but I'd think the frame is similar between XDuro and SDuro.
I love my Ohm Urban XU 700 16! I have put over 2200 miles on it. Great commuting bike! It has a lot of power and I really like having both pedal assist and throttle. My wishlist for the next version: Throttle cuts off hard at 20 mph. Wish it was smoother. I would like to have a more powerful...
Curious what do you all think about the new Stealth model they are launching on Kickstarter? So far, the response seems a bit tepid but that is expected with bikes that cost upwards of $4k - at least on crowdfunding platforms. Motor is 750 watts and max. speed is 20mph. There is an option to get...
A mid drive bike would be good given your requirements. You might be able to find a deal on last year's models if you look around. You could probably do more than 30 miles a day on an electric bike. A lot of people on this forum commute long distances on their ebikes.
Take a look at the Bobike Classic Junior or other seats from Bobike. They seem to be popular in Europe. I have the Classic Junior and my 5-year old likes it...
My experience has been similar to yours. For me, ebike has made it possible to ride 200 miles every week. I wouldn't have done that on a non-electric bike. So even if I'm using less effort while riding, overall, I'm exercising a lot more. I've lost a decent amount of weight since I started...