Product Review Epidemics Grip Silicon Valley: Apple’s Foothold in Salesforce Tower - High above San Francisco in Salesforce Tower’s glass-walled offices, Apple Inc. has quietly turned product reviews into the Valley’s newest epidemic. Influencers, analysts, and early-access testers huddle over prototype iPhones and MacBooks, filming unboxings that spread like contagion. One glowing 60-second clip from a Tower conference room hits X and LinkedIn.