some are happy with it and some are not, depending on what you're trying to do such as vertical jig over a BP, most agree it won't hold you tight on the BP, will allow the boat to drift from 10-20' off before it reacts. The spot anchor works off of gps and gps is only accurate up to a point, and its not 5' as advertised. There are several threads on the IP, check 'em out and see what all has been said. I don't vertical jig, I use mine for maintaining the boat in a safe spot while I'm retying or looking for something, I won't have to worry about running aground or hitting something. I longline and the IP works good for longlining imo.