I've been going to Laredos for about 13 years and have always been a fan. They have made some changes I don't love, but the chips and salsa and quick service usually make up for them. The meat is cooked authentic style(with potatoes) and generally very flavorful. There has been a time or two the meat has been too salty or burnt tasting but I would def. recommend Laredos to friends.
Edit - 9/30/12
Not too sure whats going on at the Whitney Laredo's but it's been kind of falling off..