I have come to this realization after returning my yggy fitst time for DOA, and then another 3X for repair, and 1more time for Gen5 upgade.
Also, there is an issue with older PSU motherboard which made my Gen5 upgrade sound dull.
Gen5 is better but still not reach level of any other input choice, so a waste of time and money if you already have another USB solution (SU-1).
Also, it is true that the yggy's unsecured larger transformers will come loose & detach from PSU motherboard, depending on age and if shipped.
The only saving grace is the warranty.
I have since moved onto a Holo Spring Dac which gives me slightly more involvement and detailing over yggy.
Also,
I recently been comparing my Holo Spring (LvL1) to my friend's yggy (A-board) to determine my decision to keep the Holo Spring.
The lesser price tag is just a bonus.
Yggy is still a top Dac, just need to keep it cool and treat it like a baby,
but I am sure others besides Holo will close the gap.