"LocalStack has been immensely helpful in speeding up our development and testing cycles, leading to more and better testing across the board. In the past we were still deploying everything directly to the cloud, and had very long iterative deployment cycles, often with limited anticipation of what the outcome would be. Each deployment blocked our dev branch, making a portion of the team unproductive, but with LocalStack we can now quickly run most unit/integration tests before promoting our code into the higher stages."