I have a need/hate relationship with Chinook Centre. Despite all the reasons I don't like visiting, I find myself here about 6 times a year for various reasons. After the expansion, the selection of stores is phenomenal - if I need a variety of items (like for Christmas shopping) this is usually the place I end up (though I'll find a weekday to do the shopping instead of an evening or weekend). I love that there's a Phil & Seb in here and Victoria Secret was a great addition.
The minuses? It's extremely busy. Parking is generally non-existent and can be endlessly frustrating. I've had a bad experience with the new underground parkade (fire alarm pulled & it was 1.5 hours before I got out of the parkade, including firemen asking me to not idle when possible due to air quality issues) and it lets out onto Macleod Trail which is pretty inconvenient when traffic is heavy. All the parking lots are generally stuffed full of people during peak times and the 3-way stop in front of the mall off Macleod is a mess at the best of times. Don't bother turning into the mall from northbound Macleod, go the back way through 5th St.
All in all, I'll keep visiting Chinook but when I can head somewhere else I do that instead.