It's so invasive and hard to kill.
you will have the roots sending up new shoots for years to come. Just know that so you can stay on top of them . . . . two years after pulling mine out I am still getting shoots. THey are easy to control by pulling and they are getting smaller and fewer in number, so I am winning.
For a replacement, how about this:
I replaced mine with grapes. But I wouldn't recommend that over a deck. Birds like grapes, birds eat grapes, birds crap grapes. And they don't have much of a flower, which you want.
I was looking for a place to plant grapes for jelly so out went the wisteria.
I grow Hyacinth Bean on my arbor. It grows FAST in hot weather of 80+. Easily covers my arbor in a season. But it is not a perennial anywhere in the us except S. Florida. Frost kills it right off.