I have one from cabelas that is just like the bogagrip design. Have not used the one you posted though. Wont have any advice with that one but the one I purchased wasnt much more than the one you are asking about. I think the 15lb grip I bought was $15.
I use it on saltwater and have no problems with the salt on it. I like it for blues and stripers.
I will see if I can take a picture of it since cabelas doesnt have it on the site.