Several blog posts say we should be using entities but there doesn't seem to be many games in prod using it, and it also doesn't seem to be well supported in the Game Manager. The Roadmap here https://blog.playfab.com/blog/playfab-roadmap-update doesn't state any updates to entities and objects.
The tutorials and examples are also way more sparse than what is publicly available for Classic.
We are a well funded indie company that is planning on using PlayFab as the backbone of our MMORPG offline data serialization. I'm really concerned about relying on a feature that most people aren't talking about, has sparse documentation, and is poorly supported on GameManager. Entities seems awesome, but I'd love to hear from someone either from the community, or at PlayFab about how to proceed.