Thank you Josh, the zoom arrived.
David convinced me that this would be a good addition for times when one is in conditions where changing lenses is a challenge. I shoot in snow and rain and dust a fair amount and changing lenses can be a challenge. My work around is to shoot a scene with all shots with the 120 and then go back again with the 35.
The size as you can see is pretty compact for a zoom, thanks to it being a slightly slower lens. This is more compact than the old 24-70 Canon zoom I used ten years ago. I was not worried about the speed, but more interested in still having a bright finder screen. I found the view screen plenty bright. Josh warned me that my split finder on the micro screen would be a challenge, but it works fine for me.
Some have complained about the shade, but it works fine for me.
I never bought the 70mm so additionally, this gives me a nice ability to cover that range too.