Aston is a leather sofa with soft upholstery capitonne, which is a modern version of refined English Chesterfild technology thanks to such elements as soft linear shape and chrome-plated legs with several finishing options.

The file contains modules in order to assemble your version of the sofa.
An example can be found here https://3dsky.org/3dmodels/show/aston_3 

Dimensions shown on the preview

Features of the model:
For all objects to be smoothed, one TurboSmooth modifier is assigned.