I have been using this product for the past 15 days now, and as far as i can say it is not a bad camera. I found couple of issues in mine. First i tried various microsd card 64, 31, 16GB none of them worked. I tried reformatting to FAT32 and still didnt work. I also tried to use "format" feature from app and it seems to be stuck forever now. 2nd issue, camera tracking and motion detection feature is very error prone. Camera goes completely nuts and move all over the place even when there is literally a blank wall around (i tried to test in empty room) and found camera moving every 2-5 seconds chasing something (maybe ghosts, which by the way this camera freaked me to my core) and chose to turn off the camera ever since. My rating is 1 out of 5.