The steam store page says "Valve Anti-Cheat enabled". What does that mean to those using this trainer? VAC ban? There should be a note about this in the NFO.
As far as I know, VAC does not work in singleplayer. Also, I thought it is well known to have VAC even without having anything of that in the NFO, its a Valve game.
Regardless of the above, only use a trainer if you can accept a potential ban. Since every game is different you can never know what happens. Always use the trainers at your own risk.
[Edited by Vakmix, 10/3/2020 4:05:33 AM]
To be safe you can add "-insecure" to launch options.
how to add -insecure to startup options?