It pretty much stinks. I always say that the best camera is the one in your hands, and most of the time that's my iPhone 5s, not my Nikon D810. But the 5s is pretty lousy for any kind of post processing, so I AirDrop images to my iPad Air.
But after all this time, and woo hoo over new versions of the Flickr app, it's still not really an iPad app-it's still an iPhone app on a iPad (oh, yeah, it's got a crappy digital zoom 2X mode, right). Oh, you CAN upload via the IOS photos app, but even that's kinda lame. And it forgets all the metadata (like copyright) that you stored in the files you import from the "big iron."
It's nice, but very much Yahoo!