If you want the extra bottom end power over a .21 5 port Go then it is the ticket. They get great fuel mileage as well, almost the same as a .21. If you are happy with the power out of the 5 port then the Gx will last longer because it has coated parts in it and the .25 doesn't yet. A .28 sport modded is a cheaper alternative also, I sell them for $170.00.
Rex