
Being an open source ERP/CRM with full suite of business apps and giving the user the freedom to extend the code is a huge advantage most ERP providers don't have. This is especially true for businesses that are obliged to maintain sovereignty over it's data and local management thereof.
Odoo is also quiet affordable for small businesses and startups, with a mature RESTful API that enable quick extensions and integrations with other platforms, not to mention the plethora of integrations already provided out of box and throup the App Store.
The UI in Odoo is not the most powerful yet, but recent developments are showing that the company is not ignoring that area and that further imporvements are on the way. Review collected by and hosted on G2.com.
It's unfortunate that Odoo's documentation couldn't be worse. It's feature-centric rather than process-centric, making it difficult for a business user to follow. Also, the writing is redundant yet not informative, stalling for many areas of the product, and mostly not useful to solve common problems. Review collected by and hosted on G2.com.