Hi MarcD! The Stromer electric bikes feel heavier to me and while it's nice to have some cool options in their control interface (and I'm sure the ST2 will have even more) I loved the IZIP E3 Dash
because it was simple. The bike has throttle, assist, similar balanced weight distribution and is much lighter (~50lbs vs. ~62lbs)... though possibly not as cool looking with the external battery design.
The Dash is a newer design than the ST1 Platinum
and it uses three sensors (torque, cadence and speed) which makes it very responsive and smooth. The Stromer bikes use a torque sensor (which is still good) but less smooth and refined.
As with Aubrizzle, I also prefer the suspension fork but you can get the ST1 Platinum with it if you want. I'd go even further and consider suspension fork plus a suspension seat post like the Thudbuster
or Body Float