Helped me out in a pinch..
I had reserved a unit via Sparefoot. The listing said "climate controlled". I drove 1,000 miles with a 26 FT box truck, and got to the office JUST before closing. The extremely kind woman then informed me that they were, in fact, NOT a climate controlled facility.
Most people would have just said "sorry" and sent me on my way. Instead, she called up Walker Storage, who had a last minute opening and said "come on over, we'll wait for you".
45 min later, I got to Walker Storage, and the manager met me after hours to get me into a unit. She gave me a great deal, a free lock, and even a second unit the next day.
I highly recommend this facility. It would be cool if they had more than one elevator. But, other than that, I plan on being here a long time.