I am exactly there in terms of MVP and team. We had an AWS connoisseur who left just after I joined. Tiny micro nano services all the way except his know-how didn't rubb off that well with the rest if the team which is new to the web dev altogether. That's one thing. The other being the sea of reinvented lock-in technology that AWS is. While support is quick to reply, you will face many "huh?" moments that have little to do with arguments and more to so with unapologetic opinion, especially API gateway and its integration with Lambda. It's for reasons like the above that we're experimenting now with a more mono architecture, replacing API gateway with Beanstalk for now, nginx later, but still run Lambdas in the background.