The authors have set up a live demo on their HuggingFace page: https://huggingface.co/spaces/pengHTYX/Era3D_MV_demo
It's very easy to upload your image, click the button called "Generate Normals and Colors" and get multiple views of the generated 3d model populated below.
For full experience and mesh export, their Github repo is the way to go: https://github.com/pengHTYX/Era3D?tab=readme-ov-file
Update: here is an example of a generated Nokia phone that can hold its battery for at least a year: https://imgur.com/PzUfbW7