I'm getting 4G around Weston and Bonaventure. It seems one tower is located on Bonaventure Boulevard and Saddle Club road. Speed testing there got me about 10+mbps down and 4+mbps up. Around Weston it seems to be improving as the weeks go by but according to the Sprint site they only have 3 sites in the area which I think may not be enough. Let's hope when its running at full capacity things look a little better.
In Tamiami on 107th st and 24th there is amazing LTE reception as well. About 15+ down and 3+up. Around FIU it seems to stutter.
