I'd buy a better pump as my backup for when that one inevitably goes bad. At least after my 1st couple jobs with it knowing what I know now. The best thing about good engines is that you can pop on a better pump that fits the bolt pattern.
Fun fact: Milwaukee doesn't make pressure washers, or at least the didn't 2 years ago, because the general public wouldn't pay the premium for a General or a CAT pump. At least that's what the pretty Milwaukee rep told me when I asked.