Chasing Rails

At the risk of adding to the echo chamber, I’d like to point out the React Framework for Zope , a Zope 2.x product which attempts to ease web development by “stealing ideas from Ruby on Rails ”. OK, so this looks cool. But I can’t help wondering why Rails has become the gold standard that web application frameworks aspire towards? Between React, Subway and CherryPy (which Subway uses), there seems to be quite a bit of interest in coming up with either “Python on Rails” or a “Rails Killer”. Is Rails really that good? I admit it looks cool, but I haven’t actually used it. Can someone help me out on this?