I was just playing around with the plugin for a bit, I really like the idea of easily editing meshes and painting the textures in Unity without needing the Blender export to Unity import workflow. It's great for these simple meshes where external software like Blender could be overkill
One feature I'd love to see would be the ability to add mesh faces for tiles in the tile edit mode, instead of just painting on existing faces. Just like the build feature in Sprytile. I'm not sure how difficult this would be to implement, I know Sprytile uses the snapped blender cursor to make it possible.
Maybe it's there and I've missed it or I'm using it wrong, but I thought this was what the tile edit mode did already :(