The official Subaru OEM replacement pump is very overpriced but the cheap copies from China seem to be poor quality and get bad reviews.
For me this product represents a good compromise....it is good quality and reasonably priced..... and is easy to fit.
I ordered the pump on Wednesday afternoon and it was delivered by 11am next day..... and it was really well packed.
One tip: The Subaru ECM is a bit sensitive to new component installation so be sure to erase any error codes when you finish the installation.