I've eaten here a few times. The food is decent/fatty/cheesy mexican food that you would expect. The prices are GREAT for the portion you get.
But I must say, I would give this place a 5/5 stars for service. I recently went there with a group of 12, during lunch, with no reservation, and the staff was super accommodating and friendly!!!!
Oh, and for the other comments that El Jalapeno, Los Habaneros, Si Senor, etc are all carbon copies of each other...well...I'm 99% sure it's the same parent company. The menus at Los Habaneros say "here at Si Senor"...so...that typo probably says enough....