If you look at the rear axle, you'll notice the axle sits in a cam. This is so you can tension / loosen the chain. On a standard set-up, the axle is in the top half of the cam.
With the axle flip, you spin the cam through 180 degrees, putting the axle in the lower half of the cam. This lifts the back of the bike about 30mm. This, in turn, changes the rake of the forks, making them sit steeper, giving the bike better turn-in.
I spent more than a year on my bike with the standard set-up before someone told me about the flip. I couldn't believe the difference! I'll never go back now.
As I said, though, you're probably best getting used to the size / weight of the big girl first, before you raise the seat and make the bike turn quicker. If you're struggling to move it around now, just wait 'til the seat's 20mm HIGHER!!

I used to be able to flat-foot it with both feet, but now I'm on the balls of my feet.
My last drop cost $4k; new R/H mirror and pipe, both pieces of the front guard and loads of Harlequin paint at $1500/L!!!

Thank God for insurance!!

In God, we trust; all others must supply data.