My past 2 "home situations" with Dlink:
Most recent:
DIR-655
Used in an apartment built in the 20s and remodeled "somewhat". The walls were still original plaster though. Worked great anywhere in the 5 room apartment. Very strong signal. I even used it outside the apartment in the parking lot. I used it for about 1.5 years until finally it would reset every 2 minutes by itself. Funny thing is, it never acted up until I upgraded the firmware. Once I did that, it would get extremely hot and reset all of the time. I replaced it with a Linksys VPN router that I just had lying around. But all in all, it would a fast, reliable device. Never had to reset it really.
Previous:
DGL-4300
This was also a great device. It's still being used since I bought it almost 2 years ago. It's reliable and sometimes has to be rebooted, but not often. It does have to be rebooted once you make simple changes. I didn't like that, but whatever. I have 1000ports on all of my equipment and that's mainly what I was after. So, it is being used in a townhouse in Baltimore, MD right now by my brother. His house is OLD. Plaster walls, THICK plaster walls. It is up on the second floor and he uses his laptop with an internet intel wireless chip. He never has problems with the signal. I also tested in the basement and the signal was about 50%. It still worked great though with his intel internal Wi-Fi and my external Linksys 802.11g SRX card that I bought a long time ago.
I hope that this helps.