VAS (Steven Leung) cartridge repair/retipping service?

I found Steve on Ebay while searching for a retipping service for my Sumiko Blackbird. The poor tired bird has been singing rather dull lately. The price Steve gave me was more than reasonable. I sent him a few pictures. He replied the cantilever looks OK, suggested a couple of more expensive options that were just a hundred more. 
I found him on facebook, gave him a call.
Sending him the cartridge next week. Judging by the feedback here his work will be outstanding and the price is just a quarter of what Needle Doctor quoted me.
Not to hijack this thread, I am thinking of switching from a Pro-Ject Phono Box DS+ to a combo of Schiit Mani and Swagman Linear Power Supply.
The Mani gets rave reviews online, much better than the DS+. Is that a worthwhile upgrade?

Steven is a paragon of integrity. I contacted him to fix my Sumiko Blackbird about a month ago. Elsewhere, I have been quoted $1,000 for the retipping. His quote was almost a quarter of that amount. He called me to offer his own cart VAS Nova as a replacement. I had no use for the dull Blackbird anymore (who would pay the grand if a new Blackbird cots just a measly $200 more?). He ships his Nova to me. It gets lost in shipment (USPS refuses to acknowledge it is lost, it simply says "out for delivery" for a month). A less honest seller would have said tough luck, I spent my time and my parts, not my fault USPS lost it. But Steven promptly created a new cartridge and shipped it again at his expense. It is being broken in , but I already hear details I have not heard before even with the $1,200 Sumiko Blackbird. 
Outstanding seller! Will never buy or repair a cartridge anywhere else.