Ayu's site
shows a total of 9,694 completed downloads of
REC as of this morning. A well-known private tracker that I can't link to here shows another 4,980 downloads. That's better than the 1,324 downloads on that site of
Yomigaeru Sora: Rescue Wings from the same season as
REC (Winter, 2006), but nowhere close to the nearly 35,000 downloads of
Ergo Proxy, also from Winter, 2006.