Don't try to return anything, ignore the mess in the restaurants and focus on great furniture selection.
Ok, I LOVE Ikea furniture. It is cheap, beautiful and more durable than any other cheap brand. Yes, it is not the type that will last you util ready to be passed on to your grandchildren but you know what, I don't want to keep the same furniture for my whole life. I like to change my place every here and there and Ikea offers great prices and is always on trend.
As for other experiences in this particular store go: the returns and exchanges department is a horror story. I waited more than an hour to exchange a broken picture frame. There were many people complaining about missing parts in their kitchen order so maybe that is best to be avoided too at this particular location.
Another thing I really hate is the horrible mess in their restaurant. Ikea stores in Europe are always clean and cozy to the point one almost wants to live in them permanently. In Canada, Ikea stores are usually busy, full of screaming kids and food all over the floor and chairs. Watch out before you sit down! They do not know how to properly prepare meat balls that are way undercooked. they are cheap though.
Also, great resource for nice X-mas trees and decorations.