Having read various reviews on various wifi cards ranging from very cheap ones to big name, big price cards it looked like whatever I bought was going to be a 50-50 chance of working beautifully or not at all. So I went for cheap and this one had several good reviews so I bought it.
Plugged straight in, installed straight away using the supplied CD. Within 5 minutes my network was up and running. Very good signal reception and so far no problems. So if like me you have doubts having read countless reviews go for this one, for me if I'd spent 5 x the price (which I could easily do) it wouldn't be any simpler or better. If it helps you decide I'm running XP Pro on an old dell latitude and my router is a BT branded e-wire device.