I think that unless you critically listen to all of what's out there, you'll be chasing your tail looking for greener pastures. If what you have pleases you, then by all means, listen for the pleasure of it, unless you have loads of disposable income.
I haven't heard the Denafrips Terminator but I have heard the Holo Springs DAC (can't say which model) and it was paired with the HeadAmp and a pair of Audeze cans and the sound was simply captivating, sublime, and just right, from the very first note.
That was more than two years ago and if I were in the market for a great DAC, I would have stopped right there and be done with it. It could have been any other DAC that could have floated my boat and that's the point: the potential to satisfy is a lot closer than you think.
All the best,
Nonoise