Ok, so I've completed the install of the rear anti-sway bar, the 4-point front lower arm bar, and finally the somewhat mis-named front strut bar.
To start off, these parts are also compatible with the 2009 Honda Fit. It seems they share similar chassis dimensions
First installed was a Progress Technology 62.1061 Rear Anti-Sway Bar
I let my mechanic do this one. It was just too damned cold, and I also had some other work for him as well. He said that it was a very easy install and was surprised that I had him do it. Then we laughed.
My girlfriend drove it to the garage in the morning, and then picked it up in the afternoon. Her comment was that it was really solid, and that the back did not wander so much. I drove it the next day, and yeah, I had to agree with that statement.
Next installed was the Cusco 386 477 AN Version 2 Front (4-point) Lower Arm Bar
The bar is a different design than what you see on JuicedHybrid.
The install was a straightforward bolt on (no cutting or trimming of baffles), with a short-well socket doing the trick. (Hint: unless you're a skinny 12 year old, you will need to jack up the car to put this on.) It took less than 30 minutes, and maybe less, had the last bolt not required super human effort to loosen.
I took it for a spin afterwards, and noticed that not only was the oversteer very reduced in the rear, the understeer in the front was considerably less. Again, the word "stable" came to mind.
Finally was the Cusco 376 540 A Strut Bar Front Os Insight Ze2
Another fairly straightforward install. I wouldn't really call this a "strut bar" as it connects to the body of the car about 8 inches forward of the struts. First, attach the brackets to the body, and then the bar to the brackets. Be VERY careful to NOT drop any of the nuts, washers, or bolts into the engine compartment. That goof cost almost half an hour. The biggest struggle was getting hands into tight areas when attaching brackets. You will need to use a combination of wrench and deep well sockets to be able to tighten these.