Not the greatest. I haven't had a chance to play for a few days, and before that, I pretty much just decided that they're just not worth it this year.
If you set a team at low crossing, they'll still find their way to the wing and try and cross. Set them to low speed, they'll still try and find their way into the box as quickly as possible.
It's frustrating, as the reason I first started creating custom tactics was to get teams to slow down. I wanted AI teams to have more possession than users. I wanted them to pass it back, and sometimes even play too slow. And it was possible. Except this year, it's just not that possible as of now.
If you play good defense, and are patient, they'll slow down a bit. And it is nice that teams will hit you from a variety of angles, and try different things. I do like that, but I don't like that we can't really control teams and make them play to one extreme or the other if we desire to.
I haven't give up, as testing in Play Now, it wasn't too bad. But then I jumped into career mode, seemingly just forgetting about doing custom tactics, and the AI played so damn fast. I swear it was faster than in Play Now. So, maybe tactics could help in career mode?
Bottom line, they're just not doing a lot this year, so I'm not sure if it's worth putting them in for teams. However, this weekend I will finally post what I have of the spreadsheet so far, so people can keep messing around with them.