Interesting that a report from April 2008 would still hold validity in April 2009. They're still growing, they're still powerful and oddly their stocks which were trading at $74/share in April 2008 are trading at $71 TODAY 5/27/2009
While I've never had personal dealings with Equinix, I've had conversations with hosting companies that sublease from their datacenters and they have nothing but good to say. They ARE strict about their payment methods being on time, and advance payments and are at higher rates, but most of those that I've talked with are more than happy with their services and wouldn't opt to move elsewhere.