There were a few good scenes and special effects of the lasso;
the problem I have with it is that even though it's not magic, the use is hardly realistic, and she tries to use it like a whip, and it does have that nice "crack" to it like a real whip, not to mention it's glowing gold, so it's a little campy in my opinion at least. As a martial artist, and even though I am all glamorizing fight scenes, I thought this was poorly done, choreography wise. Some of the fight moves were cool, and some were silly looking, like when jumping and her jumps have no significant striking pose, but hopefully, the rest of the movie will compensate. I know this is a minority view, but I see WW as the ultimate DC warrior, and hence, her fighting style, stylized or not, should really be Grade A. Marvel, I'm sorry to say, destroys DC when it comes to fighting scenes, but DC animation destroys Marvel when it comes to that, so it's not like they are not capable of making really cool stuff.
I mean if they even based it on this, and she had telepathic control of her lasso, it will at least make more sense:
https://www.youtube.com/watch?v=co9_YVQpiTU, then expand it from here.