One of the major sources of information about this model, and the supportability of different features was this topic.
Asus RT-N16 now supported
http://www.dd-wrt.com/phpBB2/viewtopic.php?t=61570&postdays=0&postorder=asc&start=0
Unfortunately as the last post states:
Murrkf: This thread is way too long to be practical. Outdated info is mixed with new info and few will read all 100 pages.
So you can,
SEE SUMMARY OF THIS THREAD AND CONTINUE DISCUSSION HERE:
http://www.dd-wrt.com/phpBB2/viewtopic.php?t=88118
DebWrt also now supports the asus rt-n16, full debian on this device http://dev.debwrt.net/wiki/AsusRT-N16
This is way beettr than a brick & mortar establishment.