The Exogal Comet with uber power supply was on my short list of DACs, as was the Auralic Vega. I was looking for used in the $1500 - $2k range, but didn't find any before stumbling onto the Gustard X20U, which I decided to take a gamble on (and I'm happy I did). The Exogal (as well as the Vega) has several glowing reviews from reputable sources.
One of the things that appealed to me about the Exogal was the A/D input, which could make ripping vinyl an option. The other thing that was a requirement for me was DSD capability.
I'm developing the opinion that DACs are a bit "horses for courses"--many/all of the new DACs are outstanding, but have slightly varying sounds. There was a shootout recently by the San Francisco Audiophile Society which came to similar conclusions, i.e. no clear winner out of ~10 DACs varying in cost from $1500 to >$10k.