After a few hours of use I'm really beginning to wonder if I need the Pro. The Air 2 seemed to operate the same, but I'm a guy who likes to have the latest and greatest when I get something new. The thing with the iPad is I don't use it nearly as much as my MBPr or my iPhone 6s Plus. I might keep it for a week or so then decide. I think Best Buy has a 14 day return policy.
I think the iPad you got is the best choice--but if you aren't going to use it much I'm not sure it's worth it for you to get any iPad.