I have the napa water pump and it has not given me any problems with about 4k miles. As a former aerospace engineer, one thing I suggest you do when you put the next pump face in is get the bolt tightning sequence. I didn't have it but I was very careful to tighten opposites from front to back and then bottom to top. I think with the aluminum housing and tight tolerances, being off just a little is going to put an uneven stress on the case which when it gets hot and spins, might cause a premature failure of the impeller. Just my 2 cents but when I worked in the industry, this was a very critical issue on hot parts and on the assembly floor, inspectors would check and check critical parts for proper tightning sequence and torque.
