Not too bad
This is a Potscrubber III model, and they had Perma-tuff tubs and heavier duty nylon racks, so the usual rusting was all up eliminated. These models also cleaned well because they had a self cleaning filtration system, which permitted GE to lower the amount of water used in its normal cycle.
That said, it still used copious amounts of water, had a very inefficient pump, and limited loading versatility (although the top rack holds a lot). Models below this still had the plastisol lined tanks, and are should be avoided for daily use.
This model is the entry level to the PS III line; many members here have (or had) the GSD 1200 or above (myself included) who are/were very pleased with these machines. They clean well.