I'm on Verizon and had the previous radio/ROM. I'm in a fringe area and my connection would "bounce" from 1x to EV and I'd be talking with 1 to no bars. Stock radio ROM didn't seem to do this,...
So far, this one is giving me good reception,... but it's way too soon to tell.
I run Vet's ROMs so this is Schwartz1 that I'm putting on now,... have to get my MMS and stuff back first. and then I'll mess with GPS.