They were so nice! We arrived on a Sunday and it was obvious the staff was having a tedious, relentless sort of evening so we gave 'em a bit of levity and patience - in return they made sure we were extremely happy with our food!
The kitchen staff and the manager on duty were super friendly and even made us samples of a frozen Baja Blast confection soon to be offered in Taco Bell restaurants (and offered to give us free full size ones, but we were so full already!)
The overall dining area was clean, I didn't use the restroom so I don't know what that was like.
Not a 5 star restaurant, but a 5 star experience at a Taco Bell.