I have been using it for 2-3 years now and apart from some minor breakdowns it has been working flawlessly.
It's a pretty good legit cheat and it depends ofc on the different cfgs you are using.
I use 4 different cfgs Blatant, Prime and Prime Lite.. Occasionally I use Super Rage cfg when the situation demands it but be careful with it.
The cfgs can be found here to be downloaded.