Whether you want to try and get the phone replaced as it's new you could, but the replacement could suffer the same known bugs, hopefully Motorola will release an update to help resolve these problems. There was a recent update, have you checked the phone has the most up to date software by going to Settings>About Phone>System Updates ?
XDA Developers was founded by developers, for developers. It is now a valuable resource for people who want to make the most of their mobile devices, from customizing the look and feel to adding new functionality. Are you a developer? | Terms of Service