Avoid them at all costs. They are in the hall of shame for sure, they just flip bad pumps and polish up turds and sell them to you. Also dont stand behind the work.
Took me 3 pumps to get a "decent" one and it still wasnt right but I didnt have anything else to compare it to and it was better than the leaking hot-start mess I sent them as a core.
Since then I've had Russ
@typ4 rebuild that same pump it runs much better with a nice tight insides so when you run out of fuel or are otherwise purging air it ACTUALLY WORKS before the batteries wear out.
I have pop-matched injectors from him too that are still within 50psi of each other 3 years later, return line kit still going strong, etc.