I used AmpOhm oil filled caps many years ago ion my phono stage, before they went out of business. These caps were highly prized back in the day but are unobtanium now. They had a slight warmth to them that sounded great on vinyl and were nicely transparent. Better then the Multicaps that were in there originally.
When the Jupiters came out and got such rave reviews a few years agon I installed them in the phono stage next to the AmpOhms. You see, I have a "phase switch" on my phono stage that allows me to actually use either the AmpOhms or the Jupiters. I can switch between one or the other easily.
Here's the verdict. I really can't tell the difference between them. They are both beautiful caps, clear & transparent and making music. The one benefit of the Jupiters are they are much smaller than any oil filled cap, but you need to check the space you have available because most boutique caps are generally larger than the stuff that comes with equipment.