Let me address each of your points:
Body validation, DB Query editor & DB features: Definitely understand your need for more complex validation and query building. We're still in public beta, and building out and refining our features is a continuous process. We're working on improving these areas for more advanced use cases and will consider your feedback as part of that.
Authorization: More granular control over authorization is on our roadmap.
Pricing: Appreciate your concern about pricing. In our private beta we had a different strategy and we have launched the new pricing plan this week after talking with our private beta users about what would be important for them. We'll certainly take your feedback into consideration as we adjust our pricing strategy.
Hosting location: Currently everything is hosted in the US, that being said region selection has been requested and is on the roadmap as well however we'll likely not not ship this feature before EOY. Till then, will include more information about the current hosting region on our website.
Long-term Reliability: We understand the reservation about how long Fastgen will exist since we just launched. We have not announced any funding for Fastgen yet but we are already well-funded for the next couple of years. It might also help to know that the whole core team has been working together for multiple years before we started Fastgen. While it was a different company, we raised more than 100M dollars for that one and are experienced in navigating different fundraising environments. We're in it for the long haul.