IKEA pioneered the concept of affordable furniture, and for that, deserves its place in the commercial history books.
Personally, I love IKEA, because as a child moving from country to country in Europe, the first thing we'd do in a new country would be to find the nearest IKEA store and replace a few items for our house. It was a familiar face in a whole new environment.
Now I bring my kids to IKEA here and they love it. They've been to a few IKEA stores in Paris with their grandparents. Slightly different food offerings, same furniture