Horrible on not sending txt when wifi is enabled. CAN'T MUTE group txt msg CAN'T CUSTOM color conversations! CAN'T MAKE bigger zoom on mag font (Samsung GOES BIGGER SIZE) ON Samsung phone, it has a huge empty message box on the top so I have half a screen with txt and the other half msg box! When starting a msg with the + it automatically default to the last ppl you message and if not then you have to close another window then search for the specific contact, it's like Google is working backward