We went at weird time (2 pm) so we didn't have to wait, but the place was still full.
The music was insanely loud, the noodlies were on the chewy side (You may prefer this) and the broth seemed a bit mild (You may also prefer this)
Did I mention the music was loud?
I'd probably take Kenzo only because its quieter, less chance of a wait, and the food quality is a draw as far as I'm concerned.