I can remember in years past when these were very expensive. The price is now very economical and the quality of the unit seems to be as good as the original. The pump action is strong so it bleeds relatively easily, and it comes with a plastic reservoir cap as opposed to the aluminum ones they used to come with. This is good because the aluminum caps would always corrode and cold-weld themselves to the cast iron reservoir, which would require chiseling out. Overall I'm happy with this unit, especially for the price.