Odoo is the world's easiest all-in-one management software. It includes hundreds of business apps:
CRM | e-Commerce | Accounting | Inventory | PoS | Project management | MRP | etc.
I do agree there is no proper documentation explaining each feature and most of the odoo partners even don't understand studio as they are good with python and ready to customize at the price of gold. One has to really struggle to get a small solution as everyone is not expert and learning odoo is not easy very much restricted. Yes there are videos in youtube but those even not covering all the features in a nice manner. Waiting for some extra ordinary documentation. Thanks