How is the iPad Mini performance-wise?

So I am going on a trip in September and want an iPad for it. (My Nexus 7 is just crap, I'm fed up with it).

I know refreshes are due but the general word is that the refresh is in September, so just slightly too late for me to wait for this trip (especially since the iPad Mini retina is rumoured for 2014 now...)

The one thing I love about my Nexus 7 is the smaller size, which leads me to fancy an iPad Mini.

Of course I am aware of the obvious cons, non retina display, not as powerful.

But my main question is how is performance, and battery? With only 512MB of RAM and an A5 it is essentially an iPhone 4S.