For fun I found a free model of the 2007 movie Optimus Prime and I imported it into Jig Workshop, scaled it up to scale, and put a basic color scheme on it. It’s fun to see him to scale in AR.
A few years ago when ARKit was new I aggregated a bunch of 3D models and created four AR Museum apps on the App Store. I have since pulled my 30 apps from the App Store for personal reasons but I am hoping to migrate all those models into Jigs. I had an AR Car Museum, Computer Museum, Train Museum, and Airplane Museum. Users could place one of these vehicles to scale in AR space. It was so cool to be able to walk around a Model T vehicle. They unfortunately never took off. I think that’s why I like your service so much because it builds off what I was trying to do, have a museum in my pocket. The train models were MASSIVE. When testing my software I had to go find an open field so I could place them to scale. As a huge train fan I loved being able to walk around a full scale train model and see all the small details.