I must be lucky then. I've been with Sprint for almost 10 yrs now and I can't remember a time that they didn't go over and beyond when it came to customer service.
I also travel the entire Bay area with work and the entire eastern seaboard on vacations and I ALWAYS have a signal. The only place I drop a call is west bound on the Howard Franklinjust east of the hump.
I have awesome reception with Nextel. I also lose my signal and the east side of the hump on the Howard Franklin. I sometimes lose signal going over the sky way.