In L.A. there's one local chain with reserved seating, Arclight. They check the sound and image for each screening too. It's a quality experience at a premium price, but I dislike the reserved seating. People cluster, which I don't like, so I often get up and move once the show has started.
Arclight is awesome. They are one of the few chains that actually truly care about the full "experience" of the theater. In addition to checking the sound and image (and actually knowing what they're checking for), they also don't run adverts before the film, which I appreciate.
