Brendan, thanks for the GD link
In short, layout of my board is just modified version of one of your earlier designs (which is based on original Ukrainian PCB). So yes, all of our boards are very similar.
As you noticed, I replaced VT1 with some of more robust mosfets in SO8 package. I have bunch of IRL6342 transistors, that one should be ok.
I also increased cutout area under the sensor, there is no reason to limit yourself without any valid reason.
I had excellent experience with seeedstudio in the past, but now they screwed something and not responding to my emails..
So I tried OSHPark for the first time, they are more expensive but I will get ENIG finish. They charged me 35USD for three boards.