Motorola V600

I'm confused. Been reading the forums and see that there's a "reception" problem with the V600s on Cingular. But I live in the San Francisco Bay Area, bought a Cingular V600 on Sunday (Circuit City has a SICK rebate whereby if you buy a V400 for $80, you get a FREE V600 and a FREE Bluetooth) and, so far, have experienced no reception problems at all. Phone works great (well, as great as cell phones work, which isn't saying much.)

So, my question is: Are the V600 problems nationwide or are there only geographic pockets where the phone has problems?

Thanks!