A little disappointed about the lack of overflow.  I thought 65 gallons would be lots but one rainfall fills the barrel.  I'm not interested in cascading multiple barrels so I wish there was some type of valve or overflow that would divert the water away from my foundation.  If there is a big storm I need to make sure the lower hose is left open so the water drains out.  If I then don't close the hose, I lose all the water I've stored during the storm :(