New Asus RT-N16 Router

[Petki]

Hi guys,
sorry if my question is answered somewhere (link please), but what is difference between this, RT-N16 and RT-N15 router except fact that RT-N15 has no USB ports? Because i need new router (my old good 500g Deluxe went to electronic heaven ), i need it quickly and USB ports are not problem (1 year i didnt attached USB device), but on other side, i dont want to miss some good features from N16 (if there is any difference)

EDIT: oh, ok, i found some reviews and N15 has similar to N16 only name Its totally different product, unfortunatelly not so good like N16 (it not means "bad", it is just average...)