The ease in which we can configure our services with aspens is great! We are able to set up rules that determine how traffic flows between different microservices within an application or across applications using their federation capabilities. There have been some issues where there has not always been enough documentation about what features work together well (e.g., sidecar containers) but they seem very receptive when you reach out via slack/email etc.. You will need experience working through configuration errors if your first time configuring this product. It's important to understand all aspects so that any mistakes do not impact production systems negatively. This allows us to easily test new configurations before pushing them live.