I've always loved IKEA and going to this location was an adventure when I was a kid in the late 80s, and I still get excited about it now.
It can be a little chaotic, but the store is massive, so even on the weekend I never lose my mind. There's always tons of marketplace items I can't help but grabbing. Their furniture ranges from solid to flimsy, great price to rip-off -- don't get dazzled by $10 chairs. I've become much more sharp with my IKEA budget as I've grown, so I just focus on the practical deals.
I used to think the cafeteria food was pretty wack, but it's actually quite delicious. Those veggie medallions are incredible! And the Swedish meatballs are really great, even though they're super unhealthy.
It's a trek to get out here, and can be expensive (if you start getting into furniture), so I like to keep my IKEA trips to only 3-4 times a year. I always have fun getting some odds and ends for my place. And eating some meatballs.
Note: It's easier than ever to get to via subway. Grab the shuttle if you can, but it's really only a 5 minute walk from Leslie station.