GREAT finale! Loved how the relationship between Kate and Clint blossomed, and how they interacted throughout this episode. Actually, pretty much all the characters were great.
Minor grips:
-The watch/Mockingbird reveal was cool. But at the same time, it just fell a little flat because, ultimately, it appears to be just a watch. There isn't any reason for why the Track Suits would have wanted it so badly. Maybe the point was that it would be a clue to establishing Mockingbird's true identity, and maybe she crossed paths with them in the past and they wanted to find her. But if so, that was never explained fully enough. So I kind of feel like that threat was unsatisfyingly underdeveloped, and they just distracted us with the Mockingbird reveal.
-I know this is a common thing in superhero films, and has gotten increasingly common in the MCU, but it bugged me a bit that Kate was simply overpowered. I can buy that she is a supremely talented archer and that she is a skilled martial artist. But even given that, she should not have been able to go toe to toe with Yelena, and she should not have been able to take what Kingpin was giving her either. Yeah, I know Yelena was pulling her punches because she liked Kate and didn't want to hurt her, but still. And, likewise, Kingpin was apparently only trying to disable and go about his mission rather than trying to kill. But, again, it just felt like I had to suspend just a bit too much belief.