Looking good
I love the vinyl sofa. I too was not aware you could build in blender and import it. The scale thing would be a problem for me though. I have enough trouble with scale in world without having to build on the fly and then import. I have lost count of the builds I have done that have had to be torn down and re-done when I realised the scale was askew.
Your build looks very impressive. Am loving the interior. It looks crisp and modern, everything I love in a store build. Keep us updated