iPad mini is great, and a bargain for $100!
Enjoy it and don't get hung up on the details.
We still have the original mini in our family, and I was using it today (because of an iOS 10 software incompatibility). I regret buying my mini 2, because I never filled the 128GB in 2 years of constant use (it was massively reduced in price when I bought it). The screen is a a bit better, but not especially noticeable for day-to-day stuff (Safari/Mail).
I've just bought the (9.7) Pro and am still torn between the mini/standard screen size. The only feature that I am now absolutely dependent on is the fingerprint unlock, which I learned to appreciate from my phone. The pencil is still gimmicky (for my use).
As other posts have highlighted, we still need better software tools to maximise potential. If you're only interested in consumption, the mini is great - if it is to work on, then the larger screen may be an advantage. The app I was using today doesn't do that - it looked better on the mini 2 than the Pro, and the mini was indistinguishable from the 2...
Enjoy!