Serverless web applications have become a widely adopted practice in cloud engineering, offering teams increased agility, scalability, and efficiency for customer-facing applications and critical workloads. By leveraging serverless architecture, developers can focus on writing code without worrying about server management tasks, leading to cost-efficiency, scalability, faster development, flexibility, and high availability. However, before building a serverless web application, it's essential to consider your experience, plan for observability from the outset, allocate sufficient time for configuring each Lambda function, acknowledge the lack of documentation, find the right balance in determining the application structure, and create an efficient development workflow. With the right knowledge and tools, serverless success is not only possible but also beneficial, delivering critical insights into managed service data and enabling developers to deliver with confidence on serverless architectures.