Thanks for the comments folks.
The fence took about an hour. You'll want to take your time so you can concentrate on the way gravity would affect the cables, and so that you can be very careful. I've heard of people breaking some of the rings the wires go through, so you want to keep in mind that even though it's metal, it's still breakable. A few of the wires on the short wire fence post to the Rex's right started to feel quite loose on mine while bending them. A couple feel like they could come right off.
I'm hoping the wires are just glued into drilled holes on the posts and they're just broke free to turn in their holes, and not somehow part of the post and breaking down where they'll snap now with the slightest touch. If they pop out and can be pushed back in, no big deal. If they snap off and I have to drill out a hole to stuff it back into, that would be a bad deal. So, everyone please be careful with your fences, as they do need some care when putting together and bending up those wires.