I picked one up from a GTA dealer who also guarantee its genuine and if not, you can file for a refund through paypal. So far I have not had any issues with them yet.
And yes, it is a bit of a pain compared to the iks receivers of the past. The one thing that keeps me from getting more T6 is why DL didn't put the same interface from the T1 in as the iptv portion of the program and instead we have to use emulators.
Another difference between the clones and the genuine receivers is the file recognition. When I got my receiver, I put the genuine files and the clone files on the same drive and try to update the receiver. My receiver did not recognize the clone files on the drive. It only recognized the bin files not the by2 file the clones use. I was able to update and reset the files up to the 363 with no issues. I hope that helps too.