It's not a great game.
I consider myself a huge fan of SG, so I'm an edge case of a customer who would try it regardless of quality. I'm also a huge fan of Commandos games, I've played all of the classic run, plus fan mods that add extremely hard levels.
Stargate Timekeepers, being a mix of these two things, should be great for me. Unfortunately, the level design is bad, the lore accuracy is bad, the game is full of glitches, it was delayed over a year and they've only released half of the game, and it's generally an unpolished not-that-fun game. I feel I'm getting more out of it than most, and even I am a bit disappointed. You are not really led into situations to utilize the characters' special abilities, instead the character just start saying "Hey team-mate, you've been using that move a lot. Why don't you try something else?". But you don't need to try something else. You can just punch and bind most of the enemies. So many of them are just facing the wall with no other enemy guarding them.
Then, 'Timekeepers'? I'm half way through (level 7) the first half, and there has been no reference to the title of Timekeepers. I assumed the premise of the game would involve time travel, and yet I'm many hours in and not a single clue that hints it.
Not great at all.
