You aint whisteling Dixie, my friend. I'm experiencing pretty major problems right now. These problems are recent in my part of Milwaukee. Back in early March, I started seeing inconsistancies in service but only during a block of time, from 1500 till about 0230 or so on any given day. The rep I was working with, Christy McClurg, did a lot of research and reaching out to find out that it was a capacity issue and she said that the tower was about to be upgraded at any time. She sent an Airave to my home and while it worked for others, it didn't work for my phone, a GS2E4GT. As time mounted, I asked for a service credit. She suggested I get the credit and since I was close to an upgrade, authorized the upgrade to a GS3 at a steeply discounted price..
Once the GS3 arrived, it worked wonderfully with the Airave. But as of last Saturday (20 Apr 13) the GS3 stopped camping on the Airave and now hops around from tower to tower (some Sprint, some roaming and Airave, PRL & profile updated) without any real rhyme or reason. The tower closest to me was EVDO-Rev A data, but now it's reporting eHRPD data. However, when I move to another area of the city, like my office, I experience no issues whatsoever.