Model scene in millimeters.
The object's pivots are in logical places.
Unique names are given to objects, materials and textures.
The model is grouped into one group for ease of use.
The model has a TurboSmooth modifier applied with one iteration in render mode.

Link to the table: https://ethnicraft.com/ad/en/p/10160617/corbey-outdoor-coffee-table 

For Corona render, it is recommended to install version not lower than 1.5, since the glossiness of materials is configured taking into account PBR.