The ease of use, it's very simple to set up new endpoints or change existing ones with just one line command - "beecept". It works well for me as I have multiple projects that require different APIs but still need an easy way to mock them out when writing tests (using jest). There is no real downside at this point so far! Give try if your using JEST/Enzyme testing frameworks like react-unitial / enzyme etc then beeceptor can be used effectively without any issues because there will not even by stubs generated which would throw errors otherwise while running test cases from such tools.