Ive found wireless unreliable in general. My Belkin router was a pile of pants, the wireless connection would disconnect every 40mins or so, even when I brought the comps into the same room. Very frustrating.
Perhaps less to do with brand, I had probs getting good signal strength in certain areas of the house. All kinds of latency and p/l issues, sometimes it just wouldnt work at all

. I actually got quite into wireless netowrking and started d/l various signal sniffing 'toys' to track signal strength round the house etc. I just came to the conclusion the whole thing is more hassle than its worth.
So, I found an alternative to wireless all together. Enter "Homeplug". These little babies just plug into your wall and then you plug ya network cable into the plug. Required no setting up, they are secure (or at most only vulnerable to your neighbours - and im not sure the 94 year old next door to me isnt a l33t hax0r

).
Latency is a steady 2ms, the connection is constant with no p/l. Real speeds on the 85mb version are around 60mb, which is fine for my needs. People have been using them with their xboxes, home media systems, PCs, etc, etc with no probs. The down side is that it could get pricey if you need lots of them, a small % of homes are incompatible, ya laptop will need to be near a power socket, but these should be in every room, I even have one in the garden!
My Belkin is now retired and my 6 yr old generic adsl router reinstated. Worth looking up imo. At least until wireless tech gets more reliable...