Nit: there's a lot of noise being made in comments about it being an open source product, but I haven't found the source (maybe I have to speak to an expert to get it?). github.com/getlago has the docs, which is nice (and gives a lot more info than is available on the website about how the product works), but not quite the same.
Also note:
> Our open-core version is forever free. We will introduce paying add-ons in the future, with a consumption-based approach.