Like other moto's, this seems to go through some sort of 1 or 2 second echo cancellations when first using a new (cell) tower. However, once it's calibrated into your location it sounds perfect.The device is amazing and quite a bundle of features overall. Voice recognition works perfectly and promptly for me.However, I have to give it low marks for cosmetics. The screen gets greasy from your face. It doesn't feel or handle at all like a phone. I think the only way you can enjoy using it is with a bluetooth headset. I don't like the slider aspect of it at all. I'd prefer a flip phone by a long shot. But this seems to be the best tmo subsidized offering at this date. Battery really does seem to last all week for me. Camera takes great indoor pictures/films and I have to wonder if the complainers about the camera bothered to take the film off of the lense.I haven't figured out how to make it beep when a message is waiting and I really need that feature.Get an arm band holster, screen cover, 2gig memory, and bluetooth headset; your going to want them for this type of phone. Not too bad.