I got my Phoenix boards a few weeks ago and fitted them into my standard serviced NAP 180 (very easy to do) and I agree with the comments above, better separation, more detail, more shimmer on cymbals, more resonance to piano and most notable is the bass. More of it, deeper, better control, more defined. I didn't really expect it to be that much better for the money. I ordered them in the Easter sale so got the 15% discount. I am very pleased with them and they are not going back. I also ordered the Dragon Newt board for my Hi-Cap but still waiting for that. At least the Phoenix board will have settled in so I can see what difference the Newt board makes on top.
VFM wise I am very pleased, in the world of HiFi this much improvement for £340 is good, the Newt was £148 on top, so again not breaking the bank.
I am running a 102/NAPSC/Hi-Cap/180 (all serviced last year) into Neat Iota Alphas, not super hi end but I am more than happy with it using either my Innuos Zen Mini Mk3, Naim CD5/APX4 and my LP12.
The 2003 Avondale APX4 power supply, gives a different sound to the system when tried on the NAC 102 against the Hi Cap, not necessarily better, so be good to compare this against the WH Dragon Newt board.