speed would be the concern, airdroid is really good but copy a couple gigabytes takes 15 minutes, the usb connection does the same under 2 or 3 minutes
no idea why airdroid limits itself to 5 mbps connection more or less
still wireless seems better to me, when i mount the sd card filesystem on the machine, i expose it to errors reading and writing fat32, something that happened to me in the past
maybe mtp works better than old usb mas storage?