Only time and memory is configurable. AWS Allocates other resources like CPU, networking throughput based on selected memory configuration.
Temp storage limitations – 512 MB (If need be, we can mount AWS Elastic File System)
Not recommended to use libraries like Spring, Hibernate, etc.
No APIs for IoC, Localization, interaction with shared services, and so on.
Bad coding practice is followed as we do not have libraries like Spring for dependency injection. Flip side, people understand how to write good code and the importance of Spring Framework.