Brook converters are super low lag. I use one for Street Fighter tournaments where they only have PC setups, because I have a PS4 stick and don't want to risk them not having the right drivers.
I don't have hard numbers, but I tried out the converter a few days ago and it was really nice to be able to use my fight sticks on my Omega.
Just watched the video review and I mostly agree. Hopefully they find a way to input new default bindings.