The drawbacks of developing with Symfony are largely centered around the learning curve for developers. While the learning curve is not insurmountable, the benefit of using Symfony is proportional to the level of knowledge a developer has of the framework. Developers need to possess a deeper understanding of the framework in order to properly customize and scale their applications, while having the ability to troubleshoot any errors that may arise. Symfony is a powerful and diverse framework, but mastering it can take a significant amount of time and dedication by developers.