Ah. This is the forth time I am writing this reply. Couldn't find the right words for the first three times, and Chrome forced me to kill the page upon the forth.
I got my Prime HPA with the Prime Power Supply at a nearly criminal price from a very good friend of mine, but even so I am afraid I would not say I "LOVE" the set. Prime is not bad, but it is not all too easy going. My headphones/earphones don't pair up well with the Prime (listed below). I am still exploring how to appreciate it, but it has not been a very fruitful journey.
One very interesting thing I find about the Prime is that the reviews/impressions online are not wrong or not legit per se, but I would not take them as the perfect reference. I usually read reviews and impressions when I get a new toy, and compare my own impressions with them. When I first listened to Prime and read the reviews, I felt like "well I would not really say that", but then after listening for a longer period, it went like "well I would not really say that but you are not wrong".
To me, there is an adjustment session every time I listen to my Prime. It is not that the Prime set is bad, but somehow I feel unused to it, I feel uneasy with its presentation at times, but this peculiar feeling makes the Prime interesting, even intriguing. But most of the time I go back to my other set up.
***
Headphones: German MAESTRO GMP450 Pro, Sennheiser HD600
Earphones: Etymotic ER4S, Ocharaku Donguri-KEYAKI, Ocharaku/Olasonic TH-4FN, qdc 4SS