My Asus RT-N16 quite gave me positive results and provided more transfer rate than my Linksys WRT54GL v1.1. Just bought the Asus RT-N16 last June 4, 2010 which cost for about $136.98 including, shipping is on Express Mail International by USPS and arrived within 3 days. When it arrived I immediately tested its stock firmware v18.104.22.168 (router build date is Jan 2010) and give me some difficulties because it lacks the features of what I needed like NoCatSplash, Optware, Transmission (torrent downloader), etc. After testing the stock firmware I immediately loaded it with a third-party firmware called DD-WRT of course you need to load its trailer build (mini version for RT-N16) for the RT-N16 before you can load it with MEGA or BIG versions of DD-WRT and it goes smoothly. My download rates went up when using the RT-N16 because it has a powerful CPU on it but lacked the 5Ghz radio chip. Wireless signal went a few feet away providing better signal through our house.
After a few days I think that I need to buy an antenna upgrade for my Asus RT-N16 from Hong Kong stores on eBay. Then I went ahead and bought the RP-SMA 2.4Ghz 16dBi WLAN antenna from eBay which cost for about $12.27 for 3 pieces antenna, shipping was free because Hong Kong is a few hours away on airplane from our country and arrived within 27 days because it was sent on regular mail package. Then after testing it in on my RT-N16 my signal gained more than my expected results, so I am happy with the upgrade I made. Still I am lacking the external storage for Optware and torrenting use because those funds I bought for the Asus RT-N16 and the RP-SMA 2.4Ghz 16dBi WLAN antenna were merely donations from one of my sites to make our development more convenient.