Instanced meshes run slow in mobile. I haven’t profiled fully but my initial observations are due to lack of culling. Entire instanced level geometry is pushed to the gpu. I might be wrong. I’ll check more on this.
If your are going for a non mobile platform, definatly try out instanced mesh.
I’m working on better documentation and will update soon
As for player start, you can have a look at the runtime dungeon demo (in the quick start guide ). You can query the dungeon model for a valid location in blueprints dungeon post build event. You can also do complex stuff by traversing the minimum spanning tree graph available in the dugeon model to find furthest points in the dugeon for entrance exit. That’s not exposed to blueprints yet. I can expose it if you want