I work in downtown S.F. and AT&T data service is next to unusable. I get Edge all day in the office (20th floor). Got tired of not being about to use my iPhone and MacBook pro I went ahead and got a Sprint MiFi. It's been a day now and the connection is ROCK SOLID. My iPhone and MacBook is online all day now with no drops. To my surprise, it even works on BART (underground train), all the way from home to work. On top of that, I can now use my SlingBox app, Simpify Media 2 app (entire iTunes library on your iPhone), & Wunder Radio all day long. I got the MiFi for FREE from my local Sprint store (just ask for it and you'll get it free). No activation fee, no rebates, all I had to pay was $14 tax and I'm out the door with a new MiFi. My company get a service discount which brings the monthly service from $60 to $45. It's worth every penny! Now that I have both AT&T and Sprint for the road, I'll may not ever run into a dead zone. Can you tell I am very happy.