I need to look into this. I feel like I've hear of odoo months back and maybe it wasn't as mature. All the apps called out that connect with it, if it delivers

I need to look into this. I feel like I've hear of odoo months back and maybe it wasn't as mature. All the apps called out that connect with it, if it delivers what it says should rival anything commercial closed source right now. Whats the best resource to get up to speed on the details of odoo, is there a long video demo perhaps?