I think I can say with confidence, the 1601 and 1602 are not for me. I find the whole experience odd and retro lo-fi. This FAD sound is inarticulate, echoey and sometimes harsh (especially at higher volumes). Decay seems to last forever; a waterfall plot should prove interesting.
I find it intriguing just how much many of you love them and how they 'affect' you. They bring to mind my love of many odd or cheesy or artsy movies. Those movies invoke a particular emotion or hit a an appropriate time in my life and just 'stick with me'. I certainly understand how others could find those movies silly, bad or just plain odd. But to me those movies range the gamut from creative, to great, and to profound. Perhaps there's a little of that involved in the retro lo-fi sound I'm hearing.
This FAD experience brings back memories of listening to the stock AM radio with my father in his green Ford Pinto. It had both a green interior and exterior. My childhood retro lo-fi:
One thing I did enjoy is the the completely open feeling of my ears. While it didn't really help the soundstage of the FADs for me, it did provide a uniquely comfortable experience that just allowed my ears to 'breathe' but you definitely need to find a completely silent space to enjoy this openness.
Finally- Regarding me just 'not getting it', as was mentioned earlier, that is probably as good an explanation as any. The best way to describe my experience in contrast with the others here is this:
"They remind me of those posters/paintings from 10 or 15 years ago (autostereogram or magic eye), that just look like patterns of shapes and colors but if you stare long enough for your eyes and mind to disengage and lose focus, you'll be rewarded with seeing some kind of 3 dimensional object, scene or character not otherwise readily seen in the pattern and colors.
I only ever saw patterns of shapes and colors."