I wouldn’t buy an older one (Strida 1, Strida 2 or even Strida 3) because you can have problems to get spares.
I posted here that my Strida 3 has cracks in the frame, the new models have been improved with a new design.
viewtopic.php?f=4&t=3759&start=0&st=0&sk=t&sd=a
This is a detail of the old one:
And this is the new one:
The luggage carrier is not only to carry things, it is useful to lay the bike on the floor.