AWS offers many valuable features over Heroku in considerable scenarios. Firstly, AWS gives greater customization and flexibility options through infrastructure customization for your applications, including networking, storage, security, and server configurations. Further, it offers various services, including computing, databases, storage, analytics, and AI/ML facilitating developers to leverage various tools within one ecosystem.

Performance and scalability are also best with scalable services such as Amazon EC2, Amazon RDS, and Amazon S3, which allow for handling sudden spikes in traffic. AWS is cost-effective, with options like picking the best cost-effective instance types, setting up autoscaling to match demand, and deploying services like AWS Cost Explorer to monitor and control your expenses. AWS also boosts extensive documentation and a large community, facilitating access to best practices and technical expertise. Finally, AWS excels in enterprise-grade capabilities, compliance certifications, and security measures.

Although Heroku has its own benefits and USPs, considering Heroku to AWS migration is suggested when your company needs more scalability, control, cost optimization, customization, cutting-edge functionality, security/compliance conditions, or architectural advancement. AWS offers higher flexibility and customization possibilities, a broader range of services, cost optimization features, scalability, advanced functionalities, and robust security/compliance measures. Evaluating your specific business necessities and future anticipations aids in determining if Heroku to AWS migration aligns with your preferred goals.

Heroku and AWS significantly differ in terms of flexibility, complexity, and control. Heroku is a fully executed platform-as-a-service (PaaS) that abstracts away infrastructure control and simplifies application deployment. It gives a refined user experience for developers with limited customization and control options. However, AWS provides Infrastructure-as-a-Service (IaaS) with granular governance over infrastructure configurations and components. It offers a comprehensive service feasibility permitting unique customization and flexibility.

AWS’s performance and scalability options are more comprehensive, accommodating extensive traffic spikes and assisting application expansion. Besides, Heroku follows a bit fixed pricing model, while AWS functions flexibly, providing price optimization dependent on pay-as-you-use. Heroku is aimed at developers who seek ease and simplicity of use. On the other hand, AWS serves businesses having complex architectural needs and requirements for customization, control, and a more comprehensive range of services.