Rear Sway Bar

I have not seen a thread about rear sway bars yet. Maybe there is one and if someone could like to me one, I would really appreciate it, if not, I would like some information from those that have one.

I was looking into the Progress Adjustable Rear Sway bar, does anyone have any complaints about them? Any praises about them? Please help me out and let me know. Thank you.

Rear Sway Bar