It’s built on top of an Oracle database
While most cloud firms go for an open-source technology, Salesforce.com sits on top of Oracle infrastructure – CEO Marc Benioff is an ex-exec of the ERP firm.
The big pluses for this are that Oracle has an impressive relational database management system, and boasts its Exadata product to speed up hardware access.
The downside is this is expensive to run, and Oracle could decide not to renew the contract – leaving Salesforce suddenly without a functioning infrastructure.
It has 2,000 apps from third parties

Salesforce’s AppExchange hosts around 2,000 apps from third-parties, giving customers plenty of options for what they can use to help their businesses.