I've had an iPhone with AT&T since August 2010. I live in the San Fernando Valley, just north of Los Angeles. We got LTE service Valley-wide in late-2012, and it was blazing-fast at my house and many other locations I regularly visit, with typical download speed of 25 to 50 Mbps. In other areas it was no slower than 6 or 7 Mbps. However, over the last few months, I've noticed a marked degradation of LTE speeds just about everywhere I go. I know it's not my iPhone 5S malfunctioning, because I've had Apple check the phone, and I can get faster speeds when I go out of town.

Has anyone else in the LA area noticed this? I would love to hear your stories.

Also, I'd love to hear from Verizon and T-Mobile users in LA who have the iPhone 5 or 5S, to hear what your service is like because, if this continues, I will likely switch.