I got the phone at 8 am today, it's a great phone ( till now) . I tried to use the GPS many times ( I turned off assisted location and just kept the GPS). At my window where I used to get around 6-7 satellite with MT4G , I am getting 0 , nothing in the view. When I got out and tried in the street, while standing I got 2 sat only. So I think there is a problem with the antenna. Any tips to verify if it's really defected or something else, I read about some folks getting locking in few seconds and with 7-11 Sats.
Update: After few hours, GPS started to work just fine. I don't know why but now it's very fast and pretty accurate.