I've overall really enjoyed AWS Educate, but some changes earlier this year make it an overall worse experience.

The main new wrinkle is automatically shutting down EC2 instances when you are "logged out". While I do understand that new to AWS people might not realize they are incurring charges by leaving an instance running, stopping an instance after a short run time makes things less useful and does nothing to address the opaque way things are charged --  you are still "billed" for storage when an instance is stopped, so while this stops your account from being run to zero super quickly by badly deployed resources, it doesn't actually stop you from having part of your balance slowly drained away.