Just installed my new 868L rev b.
Updated from my trusty DIR-655, which has worked a treat for me, for many years.
Got a good deal, I think. About 100 euros including postages.
Configured it, updated to latest FW (201b05) and seems to work beautifully (Knock on wood).
Seems they have removed the USB 3 setting? I suppose it made more problems than anything else. At least I cannot find any setting for it anymore (and would have disabled it anyway...)