I first experienced El Jefe's when I was visiting Las Vegas a few years back.  I enjoyed my experience the first time so it was definitely on my list of places to come back to when I moved here.  Ive always had great service with all of the employees.  They make great drinks and have a nice selection of salsa's for their chips and salsa order.  They have great options for seating, the bar works or restaurant seating as well.  Overall, a great place.  I definitely recommend!