I own two DLinks: DGL-4300 and DIR-655. Reason why I got it is because I use bittorrent heavily.
My first router, DGL-4300, performed rather well, it replace my Buffalo Airstation G54. The G54 just could not handle bittorrent well, requiring frequent reboots. After doing a bit of research, I took the chance with the DGL-4300, and was very happy. Still using it to this day, though not as heavily.
The DIR-655 I bought about 2 years ago, again for bittorrent purposes... and so far so good.
Both routers on 24x7. It's not completely flawless, but I just can't find a better router with reviews backing it up.
I have yet to find a prosumer router that can handle bittorrent well, if anyone knows one... please post.
Would I buy another... yes.. even recommended my sister to buy Dlink when her Linksys died on her.
No.. I don't work for Dlink.