Just downloaded the Beta. I have Aperture 3 on a seven year old 24" iMac with Yosemite. I found that I could just drag and drop an Aperture thumbnail in View into Affinity Photo with no problem. Works with iPhoto on my MacBook Air, too. So reason to believe that it will do the same with Photos when that arrives. Definitely faster than having to "Open in Photoshop CS4" in Aperture and wait while the image loads into Photoshop *drums fingers on table*. And, yeah, CS4. I somehow never got the email that allowed the one free upgrade so I'm stuck since I refuse to subscribe. It probably won't run at all on the next OSx iteration, so I'm really, and I mean really, hoping that Affinity Photo will replace it.