Hi all, I am that friend/customer that took round the Curious USB 0.8m and Phasure Lush 0.7m for a bit of comparing. I am completely familiar with these two cables in my own system. I have found the Curious to be the kind of cable you can put in to demonstrate to someone who does not believe they make a difference that they actually do make a difference. It provides a wide and expansive soundstage full of detail.
It is not until you compare it to something else that is of the same level of respect that you can really tell its negatives as well as its positives. Phasure Lush is a more rounded, natural sound. Listening back to the Curious, the Curious is found to be a bit edgy and abrasive, tonally natural instruments are less real, thinner (think classical guitar and piano, they sound less full and real), but it does separate everything well.
The Phasure Lush wins it sounds more natural, but maaaaaybe there's a slight lack of detail, and it's just a touch dull sounding (this has proven to be much less of an issue once it has really broken in though). If budget only stretches this far, I think it's a great cable. The Curious should really only be preferable in systems that are dull and need livening up at the top end, it injects this character, which only some people will want. I can see how older people with rolled off hearing might like it too.
Now, at toetapaudio, we tried these against the Sablon Reserva Elite USB. The best way to describe it is that it has the best of both, the tonal presentation is closer to the Phasure, but every last bit of detail is there. It's sort of a "goldilocks" thing where everything is simply "right" and there's nothing to criticise. Compared to those other ones (both of them also being half the price or less remember), it seemed to me like it could be all that's ever needed.
It may be overkill in my own system which is lesser (in which I am yet to try it), but certainly something I will be purchasing. The parity between hearing the Curious and Lush within toetap's system and the experience in my own system is enough for me to be convinced of the character and performance of the Sablon.