I think they both sort of have feature-parity. I prefer go-plus massively though because it's features run on save without any configuration on my end.

Go fmt, linters, etc all run on save and that's great for me.

I can certainly see the value, I've fallen in love with build on save. I thought I would mention a solution here for people that wish to stay with their current browser but like the sound of automatic build.

I've been using a fork of fresh[1]. I haven't found a single issue yet. I simply cd to my project and run it.

[1] https://github.com/lateefj/fresh

I find it to work much more reliably than GoSublime. Frustration with GoSublime is the reason I switched.