I mean, it's not bad but I don't feel it offers the support that a thick untapered one does. A belt's main function is to allow the stomach to expand out on it. This protects the back by taking pressure off it.
If I were to get a new belt I would probably get one like this.
http://www.elitefts.com/belt-infosheet.htm.
Call it a personal preference on my part.