I visited for the first time on a Sunday morning because of bad nasal and sinus congestion. I could not breathe through my nose and did not want to wait till the next day to make a dr's appointment. The staff there were pleasant. I did not have to wait too long. I was seen by a certified physician assistant, who knew right away what I was suffering from, and prescribed me a medication I had taken before for similar symptoms, without me mentioning anything about previous medications I had taken. He seemed to know his stuff. I was glad they were open on a Sunday. All I paid was my co-payment and was out the door. The medication prescribed helped a lot and I am able to breathe freely now. Notably good service, and nice staff. This particular office has hours from 8a to 12p on Sundays, but there are other locations that are open later. Easy to locate from either Ena Road or Ala Moana Blvd, just look for the Wailana Coffee House; the parking entrance is on Ena Road.