Sofa Olga Modern Glam Velvet is modeled according to existing, real-world furniture, which you can find on: www.houzz.com

The sofa has a procedural velvet material whose color variation is changeable. The legs have a dark wooden material.

The whole model is not joined in one mesh. It contains several parts, which are parented to an empty object.

Just mark an empty object, and snap your whole model where you want.