Summary: I love my mini iPad 2. The compact size makes it so much more portable than the larger iPad and it does everything the larger one can do. If you don't need the fingerprint reader the mini 3 offers then go with the 2, because that's the only difference between the two.
Summary: Retina display is great, battery life is great. Glad I got the 2 and not the higher-priced 3. This is my first tablet and it is nice to finally rely less on my smartphone (iPhone) for mobile email/web-browsing.
Summary: I love iPads and have had several. Though I might buy a replacement with a discontinued larger memory than usually available from Apple- what a nightmare- sold as new, but I don't know about that- touch screen had several "dead" spots.