That's the ~exact~ dishwasher we have! Not a bad unit performance-wise, however we're on pump #2 and chopper assembly (?) #2 in 5 1/2 years of at-least daily use. It did also develop a very small leak on the left side that was a hose that finally went bad.
Considering how many 1000s of loads we've probably done, I suppose that level of wear-and-tear is not unexpected.