Usability
The cheat was easy to set up and after about half an hour after purchase I was already cheating on VAC-protected Casual servers. The menu has a nice GUI and is easy to navigate.
Features
The cheat has a couple of really nice features like: aimbot, player esp (including chams and bones), building esp (dispensers, sentries etc) and some miscellaneous cheats. I can recommend you use mouse1 as your aimbot key so it will look like you flicked to your opponent's head. I also recommend turning on the chams as they are really nice and clean. You can customize the colours of all the esp-elements.
Security
TF2 is a very old game so I don't expect Valve to be putting much effort into fighting cheaters. I have not been banned yet.
Conclusion
The best Team Fortress 2 cheat I could find anywhere. If you're in doubt, I would definitely choose this cheat over other sites' cheats!