Broadly agree with this. Use K8S at LastCo -- was great so long as I didn't have to manage it, but actively managing our own K8S cluster was a nightmare. Using Heroku at CurrentCo and it's a breeze. I highly recommend it. The only thing I think that could unseat it of its ilk would be Zeit, which looks very promising. I'm skeptical of all things serverless right now but Zeit looks promising and most impressively, extremely (perhaps as much as is possible) cost effective.