We are evaluating open source content management systems. We've looked a bit at Alfresco, how does Nuxeo compare in terms of performances and customization? Any hints or resources to learn about that?
I've personally implemented Alfresco and Nuxeo, and made the decision to go with Nuxeo after working with Alfresco. I think Nuxeo is much more user friendly, and has a lot more baked in features. However, it really depends on your requirements. I would recommend solidifying those and then doing some Google searches to see which would be the best fit for you.
This answer is already 6 years old by now, nevertheless I wanted to back your reply and pointing to an article that I just wrote today about why I switched from Alfresco to Nuxeo (I'm an Alfresco Certified Engineer and Administrator, used Alfresco in projects, recently switched to Nuxeo as the preferred solution). Here is the article on Medium