Just had this delivered.  It was easy to put on the legs.  Yes they are plastic (but I don't mind that)!  I ordered the grey and I love the color.  The material is soft and seems like it will last a while.  I was worried about buying a couch from the internet but it turned out well!!!
The only down side is that I did order this the end of December and just had it delivered this week!  So if you are in a hurry to get it this may not be the couch for you!  That is the only reason I did not give a 5 star rating!!!  Otherwise GREAT COUCH!