I bought this router because I liked the idea of Having HDD disk in it (so basically NAS) and also I liked the idea of Bittorrent client in it. Delivery was very fast, router was installed without any CD (recommended by manufacturer is to use a CD) and it works like a charm no problems at all.
The good thing is that you can use it as FTP and Bittorent server/client as well with 2.5 SATA hard drive in it. Iam constantly downloading the stuff using a built in Bittorrent client - without any problems, only the problem is to have 10Maximum downloads through Bittorent client which is built in the router. But at average electric consuption of 5.5 Watts/per hour, who really cares-I do not have to have a computer (200Watts/hour) constantly on and downloading the stuff. The other thing is that I've read some review on the other web site regading the business of SATA HDD fan making noise in router. Honestly it is not bad, It does not diturb me at all and this fan is not constantly on. Im using it with SATA Samsung HDD which is 640Gb (manufacturer reckons up to 500Gb) and router formats it to EXT3 filesystem - Extended filesystem based on Linux.
My connection speed between the router and ISP provider has increased by 4x (YES 4 times). Before I used to use on same broadband line routers from Belkin, Netgear, Linksys an the fastest download which I've achieved on the same broadband line was 10Mbit/sec. But NEVER achived connection of an 40Mbits/Sec download and 15 to 20Mbits upload. Bear in mind that Iam using this router abroad in Eastern Europe in Slovakia and Iam constantly testing the connection between Slovakia and London (which is always around 40Mbits/sec) through speedtest.net If you can get one, do not hesitate, just get it. This was the best buy for me on play.com