i went last summer. limited time, i could have spent days watching and pushing all the buttons of the displays and watching all the videos in the visitors center. unfortunately my friends had all been so they were bored.
i have to say i was unimpressd with the inside of the salt lake temple. well, i hate victoriana, and it was, uh, very victorian. the castle/cathedral like exterior of the temple did not match the interior. claustrophobic seating as well. too difficult to do all the temple stuff in those tiny horrible awful cramped seats, packed in like sardines.
i walked away, saying, never again...