You needed to know two things about the first iPad mini. The first thing is that it was, well, mini -it was a 7.9-inch tablet from a company whose CEO once said that users would have to sandpaper their fingers down to comfortably use anything smaller than a full-size iPad.
Retina display resolves all of our gripes with the old mini's screen; A7 SoC blows the old mini's A5 out of the water and nearly runs as quickly as the version in the iPad Air; Great battery life; and the battery charges more quickly if you use the included 10W adapter; Nice Wi-Fi upgrade; although...
iOS 7 is still a little rough around the edges on this and every iPad; Air gap between glass and LCD keeps screen from being as good as it could be; Features like Touch ID will have to wait until next year at the earliest; Scattered reports indicate that some screens may suffer from image retention...