I have been searching for a mobile (cdma + gsm) for my parents and i ended up here and thought to give it a try. was afraid whether it will work or not with MTS CDMA sim but actually it does works very well :) Pros : 1) Good battery backup 2) Nice call quality. Cons : 1) Software which runs on this mobile is very very basic. You won't find many options to customize it. Even the Music/video player is not user friendly.