Adverts on Facebook

I’m seeing adverts on Facebook for “the worlds biggest and best 3d model library for Sketchup…”
Master 3d Reality Premium…
any comments anyone?

I don 't know anything about this particular one. There is nothing bigger than the 3D Warehouse, and it is free. Some others try to cash on content stolen from there. Then there are some good sites that sell/lease content that they have definitely created themselves.