The best part about this product is its simplicity of use. We were able to set up our application within 30 minutes and run it without any issues. It was very straightforward process which helped us migrate from AWS Cloudfront CDN to Google Cloud Storage at first time with no problems! Also I like how they can provide support via their chat service as well if we have some questions regarding configuration settings etc. There's nothing really bad here but maybe more customization would help make things easier when using certain features such as adding custom HTTP headers during migraton. This software has been working great so far since day one. No complaints yet :) Migration between different vendors (CDNs) - S3 vs GCS.