Is the miter gauge as good as a sled? ?
I have never seen a miter gauge I liked. Not even a little bit.
I build sleds dedicated to various angles I use most, such as 45º and 90º. I even have a sled for 22.5º. They never change (need no adjustments). The one thing about sleds though is that they take up a lot of room in the shop, but they're so good I tolerate their greed of real estate.