Was at Mariachis on Saturday night for dinner and I left a happy camper! It is a family run establishment; sweetest ladies ever!
Its not fancy and pretentious, very laid back vibe, decor that is typical of mexican restaurants and they have a live band playing. The waitresses laugh and joke with patrons and give great recommendations for food and drinks. Test out your Spanish skills with them, they love it!
We waited a tad long for our food but the staff apologized a few times and checked in so we didn't really notice.
All in all a great experience, I definitely suggest making reservations!