I have tried Freenas , Nas4free, rockstore and manyother, But Easy nas I found to be much more practical and easy to understand. Ya their are some bugs, but that doen't mean its Bad. ITs really good., Hope the support of the developers are always alive and I wish more and more developer join the developer team so that many get confident for using it. Currently I am using it in an production of 60 user with centralized data in scope. And having no problem from almost 8 moth. I have created 12TB Raw Partition with RAID 5 along with 250GB SSD Cache.
Its really great
Pros
The best and easy to understand.
Cons
Dealy and lack of developers ( Is being developed by single Person), Need to form an Team for the same so that others get confidence about it.
