I think the DR-680 is hands down the best purchase in the market unless you value something in the Sound Devices units (with at least triple the price) or it's oversized for your needs.
Has anyone got experience with the Tascam DR-680?
I had the DR-680 but it perished in water during a recording session. Until it drowned, I liked the UI, the recordings sounded great, and It seemed durable enough construction-wise. I used it in a petrol Deca Eargonizer, it fit perfectly in there. I also really dug recording to a SD card. Both of my macs have built-in SD card readers so offloading recordings ...