Given that I have actually been in and shopped in this store multiple times in the last few months I can tell you it's nothing like le chateau. Express is from LA. I bought some sweaters there years ago when I visited and loved the store. I was so excited when I walked past Express opening in Chinook. The clothes are expensive but I wait and always buy when they have good sales, which is often.
They have lots of sparkly clothes which I like. Also they have kinda three sections of clothes, classier clothes, club or fun clothes and casual/funky. The men's section is more for metrosexual men which is what the other reviewer was trying to say.
The employees remember me there even though I only come once a month or so and they chat with me in a fun but helpful way.