There are lots of comments on different forums about different types on online GIS data/map sharing tools.
What I need to know is what ArcGIS online CAN'T do compared to the functionality of the open source options?
I have big geodatabases that contain dynamic data that is constantly being updated and shared across multiple offices. The geodatabases contain raster data with information that needs querying - Lidar/bathymetry data. We also have vector features that could be as many as 2000 features in any one feature layer.
I have heard that it is a struggle to get raster layers into AGOL and they will just be an image with no data behind them
I have also heard that there is a limit on the number of features AGOL can display at any one time?
It seems a total minefield as to which one to use but I would prefer the free option if the functionality is the same or better in opensource.