Will be arriving in SYD in the morning after about 24hrs without a shower. I'm flying UA in J and am UA1K (*G). I don't think there are any UA lounge options on arrival. Reading this thread, I hear there are free showers. Some say they are very clean where others seem to say the opposite. I cringe thinking about a shower in a public restroom but I may be pretty desperate at that point. Are these still available? Is there a preferred one that's perhaps cleaner?