It does what it's supposed to do, so in that regard I give it "5" stars. But the fact that it starts out disabled makes it a "3." I mean, I can appreciate that the developer made his choice, due to user demand. But for me, I would prefer to have it enabled by default and then toggle it to "disabled" if the site wasn't performing as I wanted/needed.
Still, a huge nod of "thanks" to the developer for a useful add-on that does the job. For me, however, I'm not sure it's a keeper. :)
EDIT (First): Suraj, Thanks for the response, which I just saw. I will double-check. It certainly may be that I made a mistake. I hope to get back to you soon. Thanks again.
EDIT (Third): Suraj, I have used the add-on for only the Auction.com site, as I previously mentioned. As I have not been back to the site for some time now, and have not had occasion to use it elsewhere, I can only presume it's still working as you designed it. I shall remember to come back and comment if I have other issues, or praises, to offer you.