Definining Schema: Simple-Schema, Astronomy, GraphQL, etc

So I’m interested to find out what percentage of Meteor users are using some sort of schema package; whether it be Simple-Schema, Astronomy or just relying on the GraphQL schema, or none at all!?

Personally I’m using Simple-Schema, but I’ve just updated to the latest version (NPM version) and it seems to be causing me some real issues now, that and it seems quite “heavyweight” for what I’m now needing it to do (I’m using Apollo/GraphQL as well). So I’m thinking of replacing it / removing it entirely.

How are your experiences in this area? I’d love to hear them!