Whether they are a good organization or not, I can't really tell you... but definitely not all people who belong to the ACLU are anti-Christian, and definitely they have done some good, mixed in there with some less good things... just like anyone. We do good things and bad things, and hopefully the good wins out.
According to the United States Postal Service, priority mail takes 1 to 3 days to arrive at its destination. The length of time varies due to the distance based on the shipping point and the receiving point.
You can see that in the vicinity of Austin, you can count on one-day delivery for priority mail. To most urban and otherwise populated areas around the country, it's two days. To rural areas around the country, it's three days. From Austin to Chicago or the St. Louis area, it could be two days.