The use of an XQD card didn't hurt, as UHS-II SD cards, which the Sony Alpha can write 4K video to, cost the same price. Although, of course, XQD still needs a card reader. To begin with, I rented a Sony Alpha 7M3 and this device, so I could not decide what to buy. This device bribed with a comfortable grip, ease of working with the menu and implemented buttons. They shoot both devices perfectly. So, if you are new to these systems, it will be difficult for you to make a choice. By the way, NikoSee full review