I was at La Fiesta a few weeks ago and the food was the same as I remembered. Many of the workers were different though.
But in any case, I won't be going there as often anymore because my wife and I have become huge fans of Sutter Street Taqueria. And my wife is very picky about Mexican food so that's saying something. You don't get the free chips and salsa bar there, but the quality of ingredients and the taste is a big step above La Fiesta, so you are getting something in return for paying for chips.
They just extended their hours to now close at 9 pm instead of 7, and they have scheduled their official grand opening for July 14. They added super nachos to the menu and also will be introducing al pastor as a meat option, and breakfast burritos soon. So they are getting settled in. Usually when we go there, the place is pretty busy. Also, it's just nicer to hang out on Sutter Street, and after a tasty burrito we can swing by Snooks for a sundae.