I get EDGE like speeds in many areas and about double that in most. It's enough to stream pandora, check the news, post here and other things. Would I like to have faster speeds to be able to stream video? Absolutely!
However, with Sprint's revolutionary family plans which include shared Unlimited Data, they can't be beat for my family. We are a six person family that all wanted smart phones and a bill that wasn't sky high, so for us Sprint is the ONLY option (save US Cellular but we had a bad customer service experience with them).
This pretty much sums up how my Sprint data experience is right now though.
http://www.youtube.com/watch?v=zCeGCSvueM8&feature=related