Pros
The job is not going anywhere; being relieved of your position almost takes effort. There's a flat demand curve. When the economy is good, people need storage to move to their new jobs or remodel their homes. When it's lousy, the folks being evicted need somewhere to put things. The hours are short and largely in keeping with a standard business window, so mornings are not too early and you still have an evening. If you show up wearing pants and sober enough to walk, the job is yours.
Cons
The pay is atrocious. I left because, by company policy, staff cannot be promoted above the Property Manager level. District Managers and above are recruited entirely from outside the company. Corporate manipulates the bonus structure to create a cascading series of pay cuts directed primarily at the highest-performing members of the ground crew. Being advanced to Property Manager from Relief Manager does not involve a raise; you are volunteered to be on call and you are given added restrictions to your schedule by accepting this position. The sales and marketing aspect of the business is clearly designed on the assumption that the company is hiring anyone with a heartbeat (sales scripting is mandatory is clearly written at about the third-grade level). District Managers are under such perpetual scrutiny that the management climate forces an antagonistic approach; the best DMs I worked with quit or got fired for, essentially, failure to demonstrate that the rank-and-file were being properly micromanaged into complete despair. The entry-level position with Public Storage is only suitable if you are otherwise unemployed or if you have never had a job and want to be able to put "manager" on your resume.