It was great for transport too. I think when I have used my iPads it's been completely different to most people. I've always seen it as a portrait device as everything else I have is landscape so that's what I really liked. It felt more natural for reading too, more like a book, especially on the mini.
I've tried the keyboard and trackpad combo on iPad Pro and I just couldn't get with it - I multi-task far to intensely on Mac to adopt that workflow.