Bought Two of the HTC EVO 3d Phone: Issues with both!
Bought one for myself: Mine automatically reboots itself for no reason at all, sometimes twice a day... this has been going on for a solid week. And I bought it one week ago today.
Bought one for my wife: With hers the screen just goes black and the phone dies...sometimes twice a day! Have to do a battery pull to get it running again.
Both phones will be returned shortly unless an update fixing these issues is pushed out.
Love the phone, but what a pain to put up with all this.