Frankly, the Edimax EW-7108PCg is the perfect tool for connecting a wifi-incapable laptop to a wireless network. It's fast and reliable, yet it's simple and discreet. There's no additional configuration (if you're on Windows;) just plug 'n' play.
Unfortunately, my laptops use Linux, and so I spent a good 20 minutes configuring the kernel and wpa_supplicant before I could use it. Nonetheless, if that's the kinda thing you go for, then why not.
I don't understand why people will buy more expensive cards to do such a simple task when this product exists. If all you want to do is connect to a wireless network, then this is what you want. In fact, what else can you do with a WiFi adapter?!
(Also, I'm writing this review from the comfort of my garden, using this card!)