Thank you George and Eric.
"Is the Wisteria growing up a tree on the left in that first photo?" Yes, but it's not supposed to. I have to go out and hack away at the wisteria in the tree 3 or 4 times a year.
"Running rampant as a tree/shrub
is most impressive." Running rampant is only because I had no clue what I was doing when I planted them. Hence, my referring to them as my monsters. I have to be diligent at clipping back runners in the lawn and if I don't get to the vines in the tree quick enough they will grow so thick and strong that I end up having to actually cut the tree branch.
George, you mentioned your wife wanting one. If you do plant one, I'd recommend installing rebar beside it for the vine to grow up on. Train it as a tree. If you train it on a wall or building, be sure it's cement or something equally strong. Neighbors had one nicely trained up a post on their porch. It became so heavy that it eventually broke the post and the vine was the only thing holding up that end of the porch.
Wisteria is beautiful and I love mine, but they can easily become invasive and destructive.