Bought the go system few months back. And been very happy with it. Very easy to use and for fertiliser, grassland spraying and even on the mower is fantastic. Eliminates short ground when planning out the fields. Only downside is I've noticed a problem with the measuring system. It's nowhere near the acreage in the fields. Very annoying. 1 of the reasons I bought it was for knowing what acres was in fields if I'm in contracting. Any1 else any problems.