I was unable to change the control bindings, because the game would reset them every time I restart the game. I was unable to take clear screenshots via Gog Galaxy overlay since the colours looked washed-out and had huge white balance, with low contrast. I was unable to use the printscreen button, nor Nvidia screenshots, since Galaxy overlay was the only way of achieving that. Gog support couldn't fix the issue, since it was up to developers. Thankfuly Gog support was reasonable, and has issued a refund, which I'm thankful to them. I'm not sure if the issue has been fixed, and I wouldn't risk finding it out with my own money. It's a great game, just not here.
The worst pc port ever. It is so bad that the car handling is awkward and clunky. Tow truck diversion is impossible to beat because of shitt* car handling, and because of over aggressive npc ai. Npcs ai tends to be so annoying at the times, and makes certain diversions (side missions) harder than they actually are. It is unbearable. Aircraft controls are terrible. Aircraft handling is terrible. The game itself is locked in 30 fps, no matter which rig you have. You need to unlock it via Nvidia control pannel, by disabling frame rate limiter and all V-synch options as well. Graphics are terrible because of the poor port. Colours look washed out, and I guess the engine itself doesn't have enough colour variations. It is a great game. It could have been great game at least. It has very good and interesting story, memorable characters, lots of side activities, detailed character customization, detalied clothing customization, detailed vehicle customization, good character models and some innovative features which got stolen by Rockstar themselves, and implemented in their game Grand Theft Auto 5. That's ironic, considering this game was highly influenced by Grand Theft Auto series. That's about it.