The best feature of Microsoft SQL Server 2019 Express, in my opinion, is its strong support for T-SQL, which makes it easier to write complex queries, joins, and stored procedures.

I appreciate the flexibility and scalability of the functions provided through support for multiple languages.

I use AWS Elastic Beanstalk to deploy, scale, and manage web applications with Node.js and ReactJS. The auto-scaling, load balancing, and application monitoring features are great. It manages the infrastructure and provisioning, allowing me to focus more on development rather than technical setups. I find it simple to use, making the deployment and management of applications on AWS easier. I appreciate the built-in support for scaling, and the deployment process is straightforward. I enjoy the ability to manage different environments like development, staging, and production. Customizing the environment is possible, and integrating it with other AWS services is easy. The initial setup was easy for standard applications, with straightforward environment creation, configurations, and basic settings. Overall, I feel it's a good choice for teams that want straightforward AWS application deployment.