Red bananas are much like the yellow Cavendish bananas you see everywhere, and eaten the same way (unlike the Cavendish, they are better not bruised). They are also 2-3 times more expensive than their yellow cousin, but still available in most larger supermarkets.
The inside of this banana is light pink (though you might not be able to see it in the picture), and it is definitely softer in texture than the Cavendish. The taste I like better, sweeter; they have been described as having a slight raspberry-banana flavour, I would agree. Another banana variety I like much better than the Cavendish.