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Question: Comparison of this model with the SHE55m12uc model.

I would like to know if this model is better than the she55m12uc model. The she55m12uc model has 800 series racks. But this model has only 500 series racks. Is this a tie breaker, because of the difficulty in loading the current Bosch dishwashers?
If the racks do not fold down (like the 800 series), is it harder to load?