I've used Duffy's for a few years and I've never had an issue with them, although it was a little hard to find the first time (the units are in back of Duffy's Vacuum Center). Meaghan, the manager is really responsive and friendly, and so is Debi, the woman who usually is in Duffy's Vacuum and acts as the on-site manager. I did a lot of research when I first looked for a unit and Duffy's was definitely the cheapest, although I can't say for sure now. My favorite thing about Duffy's is that they don't make you sign any long term contract and have always been willing to work with me if I happen to be a few days late with my payment (which happens more than I'd like to admit). Another plus is they just renovated the place so the units and surrounding area look much better than they used to. Definitely recommend!