"Excellent voice transmission and function."4.5 starson by fos_maj947
Pros: Reliability, appearance, ruggedness, stability.
Cons: MANY are Cingular Wireless "locked".
Summary: Over and over I have compared a provider's "locked" version to an open, non-logo, unlocked version of the same phone from manufacturer of the phone.
Cingular seems to be the especially good at degrading the phone's initial performance from the manufacturer.
This is true even if an "open", "unlocked" phone is used with a SIM card from Cingular! I am not speaking to the fact that Cingular Wireless Network is flawed in itself.
Even though the initial price is greater, consider what happens when a provider alters the phone (with the plan that this will enhance the phone's performance on their network). It does not improve anything in the phone operation, but lowering the price. Functionality, dependabilty, and everyday use seem to always deteriorate.