The Intel processor it uses is not as performant as the processor that comes in the $329 iPad. The battery life is worse than that of an iPad (https://www.laptopmag.com/articles/surface-go-battery-life)
I don’t even want to imagine the sluggishness of the GPU in the Go.
The iPad has been getting 10 hour+ battery life since 2010.
The trackpad is the showstopper for an iPad for many, but you can use any third party BT keyboard.