It works fine for me. I have it set to automatically connect to my school network when in range. And all I have to do then is open up my browser and just type in any random website, and it redirects me to the school site automatically, where I can log in. And then I'm set to go. Occasionally though it does stop working, like maybe after 10-15 mins... I found it disconnects when your screen turns off. There's an option to keep you wifi always on.. I think the default is set to "turn off when screen is off" so it disconnects then. If you want to change that setting, go to settings and then wifi and manage connections I think it was, and then press the menu button on the phone and the setting for wifi come up and you can select wifi to always remain on.
Hope this helped.