Michael Fremer is a tough read for me. He's detailed about his combinations and has reviewed a good amount of gear. The inexpensive gear falls short of the mark of the hyper expensive gear, but it's closer than we think, seems to be a consistent theme.
There are several reviews of the JC3 Jr, one by Fremer in 2018. Another JC3 Jr review likened phono preamps to tennis players. Each one slightly better than the last, until you get to Roger Federer. Correlating somewhat with price, was my impression.
Fremer also reviewed my current ProJect model in 2019. Didn't dislike it actively, and used it to offer playable demo files of the DL103R as stock and with an aluminum cover.
I've ordered from Schiit in the past. The Skoll looks very interesting because of the adjustability. On the other hand, I've had to take advantage of their warranty with some of their pieces. I'm not sure that's the road I want to travel again.
You're right, it is an excellent affordable mc cartridge. I'm just curious what phono preamps folks here might have tried with it. Thanks for sharing your DL103R setup.