If you want to play it you should get it, but if it is not so important to you let it stay. It is your decision it is difficult to tell you what to do and leave as we do not know your taste. Think about it yourself and then decide for yourself.
If you feel like there's no reason to say no now.
Even if a new part comes at some point, it doesn't change the fact that you might like Unity 🤷♂️
Better get ACO or ACOd, Unity didn't really like it, but if you are up for AC now, get one of the ones I mentioned.
The movement is very smooth, the graphics are not bad and the co-op was a nice change when I played it.
If you can get it cheap, hit it.
2 euro instant gaming
It's great.
Unity is not worth it.
One of the worst parts. The older ones are better with Rogue, Liberations, & Syndicate.
I would prefer Syndicate anyway because of the newer part because of the DLC with Jack The Ripper & because the game mechanics are revised from Unity. Because of her speed she is also "cartoonish" which I prefer. But it's ultimately a matter of taste. Some absolutely need a pizza salami, others are satisfied with curd cheese & blueberries.