Any Experience With This Cartridge Retipper?

I stumbled upon this retipping service on eBay. The principal is based in Connecticut and, FWIW, has been on eBay for just over a year and has excellent feedback,  Just curious if anyone on A'gon has used this service:

https://www.ebay.com/sch/cartridge_retipping-5/m.html?item=183716517211&hash=item2ac65b955b%3Ag%...