I own the second generation Ambrosia preamp. I think it provides a lot of functionality at a relatively low price point. I have both MC and MM phono stages, a large number of unbalanced and balanced inputs and outputs, tone controls, tape loops, and a nifty volume control which can be controlled by a rotary wheel on the remote control. I think I’d have to spend 2-4 times what I spent on the Ambrosia to buy a preamp with all of its features.
The second edition Ambrosia was reworked to take care of some of the heat issues with the first generation. The second generation does not have a fan and runs cool. It has a low/high gain jumper. If you don’t play loud, and I don’t, the low gain setting will give you an incredibly low noise floor.
More information here:
https://www.sst.audio/new-products/ambrosia-2000-second-edition