I've been renting from Enterprise for a long time. My needs are simple and the checkout/return is also fast and simple, my experiences only being remarkable in that my reserved car has always been ready and available when I arrived and the experience has always been pleasant as far as I can recall. \r
In Redmond, the only time I have needed more assistance from Enterprise, they came through beyond reasonable expectations without me even asking. My arrival was notable for the friendliness of of the agent, and when I had difficulty with my flight on departure, another agent stayed around to make sure I made my flight, even though Enterprise was closed due to it being the last flight out for the day. \r
I highly recommend Enterprise.