Before I signed for another two years with Verizon Wireless, I thought about T-Moble. Seriously. They have very nice plans for the LA area, but I don't live in the LA County right now (will move soon hopefully, back over there). In my opinion from friends that have T-Mobile, they say it's ok. Some places get more signal than others. I do notice they are weaker compared to Verizon Wireless. For ex. my friend and I compare our signal strengths a lot when we're out messing around. In underpasses, in between canyons or hills, my phone always have the higher bar than his. One time, his phone cut out already while I was still talking on mine in the foothills, but it crackled a bit.
T-Mobile have a nice plan, but depending on your area. For LA County residence, you get unlimited night and weekend minutes, 1000 anytime minutes and all the good stuff, nationwide, etc, for just $39.99!!!!!! That's damn good. I'm paying that same price and I'm only getting 450 anytime minutes!!!! But majority of my friends have Verizon Wireless, haha. Free mobile to mobile IN -Calling. Take that POTS.