dedon mbarq sofa with high backrest
1970x1010x1040 (h)
https://www.dedon.de/en/Product-Finder/furniture/mbarq/3-seater-high-backrest 

export file without turbosmooth
Max file weight 111MB
model in 2013 3DsMax OBJ format

TurboSmooth is checked Render Iters
(anti-aliasing on render)

Who works in a V-Ray version lower than SP1 be careful in the materials in the BRDF section there is Microfaset GTR (GGX) if your version is older than SP1 then the BRDF field will be empty. Put Phong Blinn Ward of your choice.