I've got this one. It's decent for the price.

Honestly I wouldn't bother with such an expensive CPL on a superzoom, or with most setups really, unless you had a particular need for one. Amazon's cheap CPLs get quite good reviews. I just got one myself but can't vouch for it yet as I haven't had time to use it.

That said I've also used a B+W XS-Pro that was quite nice.