I used it 2-3 weeks ago and it was alright. What's wrong with it? What did you try and what didn't work?
I just tried it and it worked alright.
Make sure you disable your Anti-virus and firewall or create an exception for the trainer. Right-click on the trainer and run As Admin, then launch the Game and Press F1 at the Main Menu.
If you still have problems, consult the Troubleshooting Guide here:
So if you are runing steam/origin and the game in admin mode. Told your AV to ignore the trainer or turned it off along with the other security programs. Then it sounds like you have a third party program running along side it that is hooking into the processes to.
Could be a number of things. Like Raptr for one. That I have seen can cause trainers to just not want to play nice.