Condo Insurance is very different from Renters Insurance. There's more you need to protect than just your possessions.
Most condominium associations insure the building's structure and common areas, but each unit's interior construction is the responsibility of the homeowner. If your condo is destroyed, it may be up to you to replace drywall, flooring, cabinets, lighting fixtures and so on.
Also bear in mind that if you are found liable for damage to a common area - say your adorable new puppy rips up the Berber carpet in the lobby; you may be responsible for repairs.