That still doesn't answer what you expect to gain out of a new set of wheels over the Boyd you already have.

From my experience:

1. Weight. If the new wheels are dropping about 1 lb or more of the total weight of the bike that is something you can significantly notice...at least when you pick the bike up
2. Aero. Deeper profile more aero rims make a noticeable difference but whether it's a good difference depends on other factors.
3. Width. I had been riding 19-20mm wide rims. With my current carbon wheels I went with 25mm rim and have 25mm tires since it's all the rage now. There might be a difference in comfort, rolling resistance, corning etc but not night and day.

And when you get into other subjective stuff like stiffness and ability to "spin up faster" it's mostly in your head.