Chord Qutest - would you buy it again?

I have one.  I think so.  I would prefer it was MQA certified, although I doubt I could tell.  I "upgraded" from the Bluesound inode 2I.  But I upgraded amp, speakers, etc. 
This is my computer audio, so for the application being a computer driving a USB stream it works fine.  
With the tubes, the filters and everything else, it is very hard to AB them.  At the $1,800 - I believe some other may win for for sound, however the build quality is excellent, and that ranks very high for me.  So likely would do the same.  
The Watkins Gen Four speakers made the setup much more than anything else.  So I'd spend other places first if sound with budget (value) was the top priority, but with build quality and simplicity, it is worth the money.  
 

I have been listen to the RME ADI2 DAC for a couple of days comparing it with my Cambridge Audio Azure N851.

The ADI-2 has more air but voices could really need some warmth. Don't think I will keep it.

Have had a Qutest for about 2 months now and yes I would most definitely buy it again.  I am feeding it by Melco N1A via USB as well as by a Bluesound Node 2i.  For MQA the Node does the first unfold via its digital output (so I’m good to 96K going that route).   For most everything else I’m now using the Melco as my streamer.   I picked up the Qutest because of its compatibility with the Melco, and to my ears it’s a sweet combination.  The Qutest has replaced a Bryston BDA1 as my go to DAC in my system.