Bests & Worsts Reviews from Amazon

I have been using flash drives for a long long time and this is by far the WORST one. I have it plugged in and o'm working on a document and the flash drive disappears from my files. its like it goes to sleep or it turns off. I have to constantly unplug it and plug it back in, i'm afraid the drive is going to get corrupted constantly unplugging it and I might lose all my work. definitely returning it.