A:Answer That is a rather subjective question that will depend on your specific circumstances. If you're just looking for a tablet to do casual web browsing around the house, maybe use it as an e-reader from time to time, and other "light" duties, the iPad Pro is probably overkill. If you're a student or business type, or you're looking for a laptop replacement tablet, the Pro is almost certainly worth the extra money. A student looking to take notes in class would probably love the Apple Pencil, which only works with the Pro, and a business user might like being able to sign documents and skipping the printing and scanning steps previously required.
The Mini 2 has an A7 SoC with 1GB of RAM, whereas the iPad Pro has an A10X SoC with 4GB of RAM. That will net you both a significant increase in overall performance, but also greater longevity of the device's usefulness. It's only a matter of time before Apple decides supporting devices with only 1GB of RAM is more trouble than it's worth and the Mini 2 is left behind. It wouldn't surprise me if iOS 11 is the end of the road for devices with only 1GB of RAM. The screen size and RAM of the Mini 2 also prevent you from using Split View in iOS 11, which lets you run two apps side-by-side.
However, if you can't afford the cost of a Pro right now, or the 10.5 inch screen is too large for your tastes, the Mini 2 will likely serve you well. Just because there's something with better on paper specs out there doesn't automatically mean it will be better for you.
