The community is so big, and so focused on conventions over configurations, usually googling "rails <questions>" returns a LOT of links to stack overflows and blogs that clearly explains everything. Rails offer so much syntactic sugar/plug and play gem systems that usually things are setup in fewer lines of code than anywhere else.

The downside is that it's easy to build something while barely having any idea how it works, but if you want something up quickly (or if you already know how things work) then it's perfect.