It soon became apparent that the quick & easy approach looked just like that, quick and easy. And cheap looking. Never mind that the tapered legs looked like they belonged to Ozzie and Harriet. Because I had simply attached them to a flat piece of plywood, the bare edge of the wood was unfinished and distracted from the layout. There was no top for this table either, no place to rest that important cup of coffee. Also, there was no place for the train transformer and electrical controls.
In short, a decent looking coffee table was going to take more than just adding legs.
I moved on to other ideas.