Rational Team Concert lets you play and explore the complete product from Sandbox. You can access the Sandbox at https://jazz.net/sandbox and log in with the Jazz.net credentials. Sandbox is accessed via any standard web browser and you can create your own project and work on it right away. Once you have the Jazz.net user credentials, it just takes a few minutes to set up a project. Sandbox provides two example read-only projects, JUnit and Call Center, which you can explore and play with.