I have had ST for more than a year... I used it with different phones (Nokia, iPhone 4, Samsung Galaxy S2, Skyrocket..) The internet was working fine, slow in some places but very good overall.
Lately (the past couple of month), the internet has been extremely SLOW .. I am not kidding, it really SUCKS.. it keeps disconnecting and it takes too long to load pages and even gives error messages (proxy authentication). I am not the only one experiencing the problem. My wife and couple of friends have been complaining too!! I am thinking about changing carriers and going over to Simple Mobile or T-Mobile Prepaid ...
I hope to hear from someone because I called customer service and did not get any help.