Extra Space Storage (EXR) is poised to gain from its high brand value and strong presence in major cities in the United States. Strategic acquisitions, a healthy balance sheet, opportunistic investments and a third-party management platform bode well for the company’s long-term growth. However, lower new customer rates, a development boom in many markets and a high interest rate environment pose key near-term concerns.What’s Aiding EXR?Extra Space Storage is the largest operator of self-storage properties i ...