I am somewhat confused about this product. I think the Function as a Service approach has really some good advantages on more classic approaches sometimes, but if I want to go that path, what is the advantage to actually use an open source product and maintain the server with all the maintenance required (security updates, platform updates, handling scale, etc...)?

Wouldn't be an out of the box solution provided by AWL Lambda, Google Cloud Functions, etc... a better and more straightforward option on this space?

I am just wondering if I am the only one with this opinion, what is your experience on this topic?